Added base template for config ui.

appengine/config_service/ui/bower_components/polymer/closure.log

Index: appengine/config_service/ui/bower_components/polymer/closure.log
diff --git a/appengine/config_service/ui/bower_components/polymer/closure.log b/appengine/config_service/ui/bower_components/polymer/closure.log
new file mode 100644
index 0000000000000000000000000000000000000000..6b8a8c2839125c97fb4dbc44b806d1f5099539e6
--- /dev/null
+++ b/appengine/config_service/ui/bower_components/polymer/closure.log
@@ -0,0 +1,2279 @@
+gulp-google-closure-compiler: /polymer.html_script_0.js:20: WARNING - Returned type does not match declared return type.
+Expected : Object|null
+Found    : undefined
+
+    return window.Polymer._polymerFn(info);
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:144: WARNING - Property name never defined on trigger of type Object
+      let triggerPath = trigger.name;
+                        ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:168: WARNING - Property property never defined on info of type {methodName:?}
+    let changedProp = info.property;
+                      ^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:170: WARNING - Property __data never defined on inst of type Object
+      fn.call(inst, inst.__data[changedProp], oldProps[changedProp]);
+                    ^^^^^^^^^^^
+
+/polymer.html_script_10.js:195: WARNING - Property __notifyEffects never defined on inst of type Element
+    let fxs = inst.__notifyEffects;
+              ^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:225: WARNING - Missing return statement. Function expected to return boolean.
+  function notifyPath(inst, path, props) {
+  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:273: WARNING - Property __data never defined on inst of type Element
+    let value = path ? Polymer.Path.get(inst, path) : inst.__data[property];
+                                                      ^^^^^^^^^^^
+
+/polymer.html_script_10.js:298: WARNING - Property detail never defined on event of type Event
+    let detail = event.detail;
+                 ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:308: WARNING - Property _setPendingPropertyOrPath never defined on inst of type Object
+      if (inst._setPendingPropertyOrPath(toPath, value, true, Boolean(fromPath))
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:310: WARNING - Property _invalidateProperties never defined on inst of type Object
+        inst._invalidateProperties();
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:330: WARNING - Property sanitizeDOMValue never defined on Polymer of type Polymer<|function({is:string}):HTMLElement|>{prototype:?}
+      value = Polymer.sanitizeDOMValue(value, info.attrName, 'attribute', inst);
+              ^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:332: WARNING - Property _propertyToAttribute never defined on inst of type {__data:Object}
+    inst._propertyToAttribute(property, info.attrName, value);
+    ^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:352: WARNING - Property __computeEffects never defined on inst of type Element
+    let computeEffects = inst.__computeEffects;
+                         ^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:356: WARNING - Invalid type for parameter 1 of function Object.assign.
+Expected : Object
+Found    : Object|null
+More details:
+The found type is a union that includes an unexpected type: null
+        Object.assign(oldProps, inst.__dataOld);
+                      ^^^^^^^^
+
+/polymer.html_script_10.js:356: WARNING - Property __dataOld never defined on inst of type Element
+        Object.assign(oldProps, inst.__dataOld);
+                                ^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:357: WARNING - Invalid type for parameter 1 of function Object.assign.
+Expected : Object
+Found    : Object|null
+More details:
+The found type is a union that includes an unexpected type: null
+        Object.assign(changedProps, inst.__dataPending);
+                      ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:444: WARNING - Property negate never defined on $jscomp$destructuring$var0 of type {event:?}
+      let {event, negate} = binding.parts[0];
+                  ^^^^^^
+
+/polymer.html_script_10.js:470: WARNING - Property target never defined on binding of type {kind:string}
+      if (binding.kind === 'attribute' && binding.target[0] === '-') {
+                                          ^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:471: WARNING - Property target never defined on binding of type {kind:string}
+        console.warn('Cannot set attribute ' + binding.target +
+                                               ^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:474: WARNING - Property dependencies never defined on part of type Object
+        let dependencies = part.dependencies;
+                           ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:512: WARNING - Property binding never defined on info of type {index:number}
+    let binding = info.binding;
+                  ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:513: WARNING - Property part never defined on info of type {index:number}
+    let part = info.part;
+               ^^^^^^^^^
+
+/polymer.html_script_10.js:522: WARNING - Property _enqueueClient never defined on inst of type Element
+        inst._enqueueClient(node);
+        ^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:525: WARNING - Property evaluator never defined on info of type {index:number}
+      let value = info.evaluator._evaluateBinding(inst, part, path, props, oldProps, hasPaths);
+                  ^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:545: WARNING - Property sanitizeDOMValue never defined on Polymer of type Polymer<|function({is:string}):HTMLElement|>{prototype:?}
+      value = Polymer.sanitizeDOMValue(value, binding.target, binding.kind, node);
+              ^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:545: WARNING - Property kind never defined on binding of type {target:?}
+      value = Polymer.sanitizeDOMValue(value, binding.target, binding.kind, node);
+                                                              ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:549: WARNING - Property target never defined on binding of type {kind:?}
+      inst._valueToNodeAttribute(node, value, binding.target);
+                                              ^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:552: WARNING - Property target never defined on binding of type {kind:?}
+      let prop = binding.target;
+                 ^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:582: WARNING - Property kind never defined on binding of type Object
+    if (binding.kind !== 'attribute') {
+        ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:584: WARNING - Property target never defined on binding of type Object
+      if (binding.target === 'textContent' ||
+          ^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:585: WARNING - Property target never defined on binding of type Object
+          (node.localName == 'input' && binding.target == 'value')) {
+                                        ^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:623: WARNING - Property nodeInfoList never defined on $jscomp$destructuring$var1 of type {nodeList:?}
+    let {nodeList, nodeInfoList} = templateInfo;
+                   ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:710: WARNING - Property methodName never defined on sig of type Object
+    let dynamicFn = sig.static || dynamicFns && dynamicFns[sig.methodName];
+                                                           ^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:712: WARNING - Property methodName never defined on sig of type Object
+      methodName: sig.methodName,
+                  ^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:713: WARNING - Property args never defined on sig of type Object
+      args: sig.args,
+            ^^^^^^^^
+
+/polymer.html_script_10.js:717: WARNING - Property args never defined on sig of type Object
+    for (let i=0, arg; (i<sig.args.length) && (arg=sig.args[i]); i++) {
+                          ^^^^^^^^
+
+/polymer.html_script_10.js:717: WARNING - Property args never defined on sig of type Object
+    for (let i=0, arg; (i<sig.args.length) && (arg=sig.args[i]); i++) {
+                                                   ^^^^^^^^
+
+/polymer.html_script_10.js:725: WARNING - Property methodName never defined on sig of type Object
+      model._addPropertyEffect(sig.methodName, type, {
+                               ^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:753: WARNING - Property __data never defined on inst of type Object
+      let args = marshalArgs(inst.__data, info.args, property, props);
+                             ^^^^^^^^^^^
+
+/polymer.html_script_10.js:753: WARNING - Property args never defined on info of type {methodName:?}
+      let args = marshalArgs(inst.__data, info.args, property, props);
+                                          ^^^^^^^^^
+
+/polymer.html_script_10.js:923: WARNING - Property value never defined on arg of type {literal:truthy, name:?}
+        v = arg.value;
+            ^^^^^^^^^
+
+/polymer.html_script_10.js:967: WARNING - Property notifyPath never defined on inst of type Element
+    inst.notifyPath(splicesPath, { indexSplices: splices });
+    ^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:968: WARNING - Property notifyPath never defined on inst of type Element
+    inst.notifyPath(path + '.length', array.length);
+    ^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:970: WARNING - Property __data never defined on inst of type Element
+    inst.__data[splicesPath] = {indexSplices: null};
+    ^^^^^^^^^^^
+
+/polymer.html_script_10.js:1049: WARNING - propertyEffectsBase extends non-object type ?.
+
+    const propertyEffectsBase = Polymer.TemplateStamp(Polymer.PropertyAccessors(superClass));
+                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1089: WARNING - Invalid type for parameter 1 of function Object.create.
+Expected : Object|null
+Found    : *
+
+        this.__data = Object.create(props);
+                                    ^^^^^
+
+/polymer.html_script_10.js:1090: WARNING - Invalid type for parameter 1 of function Object.create.
+Expected : Object|null
+Found    : *
+
+        this.__dataPending = Object.create(props);
+                                           ^^^^^
+
+/polymer.html_script_10.js:1101: WARNING - Property __readOnly never defined on this of type PropertyEffects
+        let readOnly = this.__readOnly;
+                       ^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1102: WARNING - For/in expects an object, found type *.
+        for (let prop in props) {
+                         ^^^^^
+
+/polymer.html_script_10.js:1106: WARNING - Cannot access property [prop] of non-object type *.
+            this.__data[prop] = this.__dataPending[prop] = props[prop];
+                                                           ^^^^^
+
+/polymer.html_script_10.js:1367: WARNING - Missing return statement. Function expected to return boolean.
+      _setPendingProperty(property, value, shouldNotify) {
+      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1529: WARNING - Invalid type for parameter 1 of function runComputedEffects.
+Expected : Element|null
+Found    : PropertyEffects{__dataHasPaths:boolean}
+
+        runComputedEffects(this, changedProps, oldProps, hasPaths);
+                           ^^^^
+
+/polymer.html_script_10.js:1529: WARNING - Invalid type for parameter 2 of function runComputedEffects.
+Expected : Object|null
+Found    : *
+
+        runComputedEffects(this, changedProps, oldProps, hasPaths);
+                                 ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1529: WARNING - Invalid type for parameter 3 of function runComputedEffects.
+Expected : Object|null
+Found    : *
+
+        runComputedEffects(this, changedProps, oldProps, hasPaths);
+                                               ^^^^^^^^
+
+/polymer.html_script_10.js:1531: WARNING - Invalid type for parameter 1 of function computeLinkedPaths.
+Expected : Element|null
+Found    : PropertyEffects{__dataHasPaths:boolean}
+
+        computeLinkedPaths(this, changedProps, hasPaths);
+                           ^^^^
+
+/polymer.html_script_10.js:1531: WARNING - Invalid type for parameter 2 of function computeLinkedPaths.
+Expected : Object|null
+Found    : *
+
+        computeLinkedPaths(this, changedProps, hasPaths);
+                                 ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1537: WARNING - Invalid type for parameter 1 of function this._propagatePropertyChanges.
+Expected : Object|null
+Found    : *
+
+        this._propagatePropertyChanges(changedProps, oldProps, hasPaths);
+                                       ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1537: WARNING - Invalid type for parameter 2 of function this._propagatePropertyChanges.
+Expected : Object|null
+Found    : *
+
+        this._propagatePropertyChanges(changedProps, oldProps, hasPaths);
+                                                     ^^^^^^^^
+
+/polymer.html_script_10.js:1541: WARNING - Property __reflectEffects never defined on this of type PropertyEffects{__dataHasPaths:boolean, __dataToNotify:null}
+        runEffects(this, this.__reflectEffects, changedProps, oldProps, hasPaths);
+                         ^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1541: WARNING - Invalid type for parameter 3 of function runEffects.
+Expected : Object|null
+Found    : *
+
+        runEffects(this, this.__reflectEffects, changedProps, oldProps, hasPaths);
+                                                ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1541: WARNING - Invalid type for parameter 4 of function runEffects.
+Expected : Object|null|undefined
+Found    : *
+
+        runEffects(this, this.__reflectEffects, changedProps, oldProps, hasPaths);
+                                                              ^^^^^^^^
+
+/polymer.html_script_10.js:1543: WARNING - Property __observeEffects never defined on this of type PropertyEffects{__dataHasPaths:boolean, __dataToNotify:null}
+        runEffects(this, this.__observeEffects, changedProps, oldProps, hasPaths);
+                         ^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1543: WARNING - Invalid type for parameter 3 of function runEffects.
+Expected : Object|null
+Found    : *
+
+        runEffects(this, this.__observeEffects, changedProps, oldProps, hasPaths);
+                                                ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1543: WARNING - Invalid type for parameter 4 of function runEffects.
+Expected : Object|null|undefined
+Found    : *
+
+        runEffects(this, this.__observeEffects, changedProps, oldProps, hasPaths);
+                                                              ^^^^^^^^
+
+/polymer.html_script_10.js:1546: WARNING - Invalid type for parameter 1 of function runNotifyEffects.
+Expected : Element|null
+Found    : PropertyEffects{__dataHasPaths:boolean, __dataToNotify:null}
+
+          runNotifyEffects(this, notifyProps, changedProps, oldProps, hasPaths);
+                           ^^^^
+
+/polymer.html_script_10.js:1546: WARNING - Invalid type for parameter 3 of function runNotifyEffects.
+Expected : Object|null
+Found    : *
+
+          runNotifyEffects(this, notifyProps, changedProps, oldProps, hasPaths);
+                                              ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1546: WARNING - Invalid type for parameter 4 of function runNotifyEffects.
+Expected : Object|null
+Found    : *
+
+          runNotifyEffects(this, notifyProps, changedProps, oldProps, hasPaths);
+                                                            ^^^^^^^^
+
+/polymer.html_script_10.js:1549: WARNING - Property __dataCounter never defined on this of type PropertyEffects{__dataHasPaths:boolean, __dataToNotify:null}
+        if (this.__dataCounter == 1) {
+            ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:1641: WARNING - Invalid type for parameter 1 of function notifySplices.
+Expected : Element|null
+Found    : PropertyEffects
+
+        notifySplices(this, array, info.path, splices);
+                      ^^^^
+
+/polymer.html_script_10.js:1641: WARNING - Property path never defined on info of type Object{}
+        notifySplices(this, array, info.path, splices);
+                                   ^^^^^^^^^
+
+/polymer.html_script_10.js:1719: WARNING - Invalid type for parameter 1 of function notifySplice.
+Expected : Element|null
+Found    : PropertyEffects
+
+          notifySplice(this, array, info.path, len, items.length, []);
+                       ^^^^
+
+/polymer.html_script_10.js:1719: WARNING - Property path never defined on info of type Object{}
+          notifySplice(this, array, info.path, len, items.length, []);
+                                    ^^^^^^^^^
+
+/polymer.html_script_10.js:1743: WARNING - Invalid type for parameter 1 of function notifySplice.
+Expected : Element|null
+Found    : PropertyEffects
+
+          notifySplice(this, array, info.path, array.length, 0, [ret]);
+                       ^^^^
+
+/polymer.html_script_10.js:1743: WARNING - Property path never defined on info of type Object{}
+          notifySplice(this, array, info.path, array.length, 0, [ret]);
+                                    ^^^^^^^^^
+
+/polymer.html_script_10.js:1779: WARNING - Invalid type for parameter 1 of function notifySplice.
+Expected : Element|null
+Found    : PropertyEffects
+
+          notifySplice(this, array, info.path, start, items.length, ret);
+                       ^^^^
+
+/polymer.html_script_10.js:1779: WARNING - Property path never defined on info of type Object{}
+          notifySplice(this, array, info.path, start, items.length, ret);
+                                    ^^^^^^^^^
+
+/polymer.html_script_10.js:1803: WARNING - Invalid type for parameter 1 of function notifySplice.
+Expected : Element|null
+Found    : PropertyEffects
+
+          notifySplice(this, array, info.path, 0, 0, [ret]);
+                       ^^^^
+
+/polymer.html_script_10.js:1803: WARNING - Property path never defined on info of type Object{}
+          notifySplice(this, array, info.path, 0, 0, [ret]);
+                                    ^^^^^^^^^
+
+/polymer.html_script_10.js:1827: WARNING - Invalid type for parameter 1 of function notifySplice.
+Expected : Element|null
+Found    : PropertyEffects
+
+          notifySplice(this, array, info.path, 0, items.length, []);
+                       ^^^^
+
+/polymer.html_script_10.js:1827: WARNING - Property path never defined on info of type Object{}
+          notifySplice(this, array, info.path, 0, items.length, []);
+                                    ^^^^^^^^^
+
+/polymer.html_script_10.js:1851: WARNING - Property path never defined on info of type Object{}
+          propPath = info.path;
+                     ^^^^^^^^^
+
+/polymer.html_script_10.js:1882: WARNING - Dangerous use of the global THIS object
+            this._setProperty(property, value);
+            ^^^^
+
+/polymer.html_script_10.js:2080: WARNING - Property nodeList never defined on dom of type DocumentFragment
+        templateInfo.nodeList = dom.nodeList;
+                                ^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2093: WARNING - Property propertyEffects never defined on templateInfo of type {childNodes:Array<?>=, nodeList:?, wasPreBound:truthy=}
+          runEffects(this, templateInfo.propertyEffects, this.__data, null,
+                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2109: WARNING - Property templateInfo never defined on dom of type DocumentFragment
+        let templateInfo = dom.templateInfo;
+                           ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2143: WARNING - Property _parseTemplateNode never defined on propertyEffectsBase of type propertyEffectsBase<|function(new:propertyEffectsBase):?|>
+        let noted = super._parseTemplateNode(node, templateInfo, nodeInfo);
+                    ^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2151: WARNING - Function addBinding: called with 6 argument(s). Function requires at least 7 argument(s) and at most 7.
+            addBinding(this, templateInfo, nodeInfo, 'text', 'textContent', parts);
+            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2187: WARNING - Property setAttribute never defined on node of type Node
+            node.setAttribute(name, literal);
+            ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2194: WARNING - Property setAttribute never defined on node of type Node
+            node.setAttribute(origName, '');
+            ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2197: WARNING - Property removeAttribute never defined on node of type Node
+          node.removeAttribute(origName);
+          ^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2208: WARNING - Property _parseTemplateNodeAttribute never defined on propertyEffectsBase of type propertyEffectsBase<|function(new:propertyEffectsBase):?|>
+          return super._parseTemplateNodeAttribute(node, templateInfo, nodeInfo, name, value);
+                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2226: WARNING - Property _parseTemplateNestedTemplate never defined on propertyEffectsBase of type propertyEffectsBase<|function(new:propertyEffectsBase):?|>
+        let noted = super._parseTemplateNestedTemplate(node, templateInfo, nodeInfo);
+                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2232: WARNING - Function addBinding: called with 6 argument(s). Function requires at least 7 argument(s) and at most 7.
+          addBinding(this, templateInfo, nodeInfo, 'property', '_host_' + source, parts);
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2270: WARNING - Missing return statement. Function expected to return Array<Object|null>|null.
+      static _parseBindings(text, templateInfo) {
+      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_10.js:2299: WARNING - Property args never defined on $jscomp$destructuring$var2 of type Object
+            let {args, methodName} = signature;
+                 ^^^^
+
+/polymer.html_script_10.js:2299: WARNING - Property methodName never defined on $jscomp$destructuring$var2 of type Object
+            let {args, methodName} = signature;
+                       ^^^^^^^^^^
+
+/polymer.html_script_10.js:2352: WARNING - Property source never defined on part of type Object
+        } else if (path != part.source) {
+                           ^^^^^^^^^^^
+
+/polymer.html_script_10.js:2353: WARNING - Property source never defined on part of type Object
+          value = Polymer.Path.get(inst, part.source);
+                                         ^^^^^^^^^^^
+
+/polymer.html_script_10.js:2358: WARNING - Property __data never defined on inst of type HTMLElement
+            value = inst.__data[path];
+                    ^^^^^^^^^^^
+
+/polymer.html_script_11.js:105: WARNING - polymerElementBase extends non-object type ?.
+
+    const polymerElementBase = Polymer.PropertyEffects(base);
+                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:126: WARNING - Property properties never defined on klass of type HTMLElement
+          klass.properties : {};
+          ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:144: WARNING - Property observers never defined on klass of type HTMLElement
+          klass.observers : [];
+          ^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:155: WARNING - Type annotation references non-existent type Objecg.
+     * @return {Objecg} The input `flattenedProps` bag
+                ^^^^^^
+
+/polymer.html_script_11.js:184: WARNING - Property prototype never defined on klass of type HTMLElement{__classProperties:?}
+        let superCtor = Object.getPrototypeOf(klass.prototype).constructor;
+                                              ^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:187: WARNING - Invalid type for parameter 1 of function propertiesForClass.
+Expected : HTMLElement|null
+Found    : Function
+
+            Object.create(propertiesForClass(superCtor)),
+                                             ^^^^^^^^^
+
+/polymer.html_script_11.js:241: WARNING - Property prototype never defined on klass of type HTMLElement
+      let proto = klass.prototype;
+                  ^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:260: WARNING - Property prototype never defined on klass of type HTMLElement{__finalized:boolean}
+      let proto = klass.prototype;
+                  ^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:274: WARNING - Property template never defined on klass of type HTMLElement{__finalized:boolean, is:truthy=}
+      let template = klass.template;
+                     ^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:318: WARNING - Property _createMethodObserver never defined on proto of type HTMLElement
+        proto._createMethodObserver(observers[i], dynamicFns);
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:390: WARNING - Property _hasReadOnlyEffect never defined on proto of type HTMLElement
+      if (info.computed  && !proto._hasReadOnlyEffect(name)) {
+                             ^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:391: WARNING - Property _createComputedProperty never defined on proto of type HTMLElement
+        proto._createComputedProperty(name, info.computed, allProps);
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:393: WARNING - Property _hasReadOnlyEffect never defined on proto of type HTMLElement
+      if (info.readOnly && !proto._hasReadOnlyEffect(name)) {
+                            ^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:394: WARNING - Property _createReadOnlyProperty never defined on proto of type HTMLElement
+        proto._createReadOnlyProperty(name, !info.computed);
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:396: WARNING - Property _hasReflectEffect never defined on proto of type HTMLElement
+      if (info.reflectToAttribute && !proto._hasReflectEffect(name)) {
+                                      ^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:397: WARNING - Property _createReflectedProperty never defined on proto of type HTMLElement
+        proto._createReflectedProperty(name);
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:399: WARNING - Property _hasNotifyEffect never defined on proto of type HTMLElement
+      if (info.notify && !proto._hasNotifyEffect(name)) {
+                          ^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:400: WARNING - Property _createNotifyingProperty never defined on proto of type HTMLElement
+        proto._createNotifyingProperty(name);
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:404: WARNING - Property _createPropertyObserver never defined on proto of type HTMLElement
+        proto._createPropertyObserver(name, info.observer, allProps[info.observer]);
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:433: WARNING - Invalid type for parameter 1 of function window.ShadyCSS.prepareTemplate.
+Expected : HTMLTemplateElement
+Found    : HTMLTemplateElement|null
+More details:
+The found type is a union that includes an unexpected type: null
+        window.ShadyCSS.prepareTemplate(template, is, ext);
+                                        ^^^^^^^^
+
+/polymer.html_script_11.js:435: WARNING - Property _bindTemplate never defined on proto of type HTMLElement
+      proto._bindTemplate(template);
+      ^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:458: WARNING - Invalid type for parameter 1 of function propertiesForClass.
+Expected : HTMLElement|null
+Found    : PolymerElement
+
+          let properties = propertiesForClass(this);
+                                              ^^^^
+
+/polymer.html_script_11.js:524: WARNING - Property is never defined on this of type PolymerElement
+          this._template = Polymer.DomModule.import(this.is, 'template') ||
+                                                    ^^^^^^^
+
+/polymer.html_script_11.js:528: WARNING - Property prototype never defined on this of type PolymerElement
+            Object.getPrototypeOf(this.prototype).constructor.template;
+                                  ^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:546: WARNING - Property is never defined on this of type PolymerElement
+            const module = Polymer.DomModule.import(this.is);
+                                                    ^^^^^^^
+
+/polymer.html_script_11.js:548: WARNING - Property prototype never defined on this of type PolymerElement
+            Object.getPrototypeOf(this.prototype).constructor.importPath;
+                                  ^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:573: WARNING - Function Polymer.ResolveUrl.resolveUrl: called with 1 argument(s). Function requires at least 2 argument(s) and at most 2.
+            importPath ? Polymer.ResolveUrl.resolveUrl(importPath) : '';
+                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:574: WARNING - Invalid type for parameter 1 of function finalizeTemplate.
+Expected : HTMLElement|null
+Found    : Object|null
+More details:
+The found type is a union that includes an unexpected type: Object
+          finalizeTemplate(this.__proto__, this._template, baseURI,
+                           ^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:575: WARNING - Property localName never defined on this of type PolymerElement{_template:HTMLTemplateElement{__polymerFinalized:boolean}, constructor:Function}
+            this.localName);
+            ^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:582: WARNING - Invalid type for parameter 1 of function propertyDefaultsForClass.
+Expected : HTMLElement|null
+Found    : Function
+
+        let p$ = propertyDefaultsForClass(this.constructor);
+                                          ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:618: WARNING - Invalid type for parameter 1 of function window.ShadyCSS.styleElement.
+Expected : HTMLElement
+Found    : PolymerElement{_template:truthy}
+
+          window.ShadyCSS.styleElement(this);
+                                       ^^^^
+
+/polymer.html_script_11.js:643: WARNING - Property $ never defined on this.root of type DocumentFragment
+          this.$ = this.root.$;
+                   ^^^^^^^^^^^
+
+/polymer.html_script_11.js:676: WARNING - Missing return statement. Function expected to return Node|null.
+      _attachDom(dom) {
+      ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:719: WARNING - Invalid type for parameter 1 of function propertiesForClass.
+Expected : HTMLElement|null
+Found    : Function|null
+More details:
+The found type is a union that includes an unexpected type: Function
+          let type = propertiesForClass(this.constructor)[property].type;
+                                        ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:721: WARNING - Invalid type for parameter 1 of function this._attributeToProperty.
+Expected : string
+Found    : *
+
+            this._attributeToProperty(name, value, type);
+                                      ^^^^
+
+/polymer.html_script_11.js:721: WARNING - Invalid type for parameter 2 of function this._attributeToProperty.
+Expected : string
+Found    : *
+
+            this._attributeToProperty(name, value, type);
+                                            ^^^^^
+
+/polymer.html_script_11.js:744: WARNING - Invalid type for parameter 1 of function window.ShadyCSS.styleSubtree.
+Expected : HTMLElement
+Found    : PolymerElement
+
+          window.ShadyCSS.styleSubtree(this, properties);
+                                       ^^^^
+
+/polymer.html_script_11.js:761: WARNING - Function Polymer.ResolveUrl.resolveUrl: called with 1 argument(s). Function requires at least 2 argument(s) and at most 2.
+          base = Polymer.ResolveUrl.resolveUrl(this.importPath);
+                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:776: WARNING - Property _parseTemplateContent never defined on polymerElementBase of type polymerElementBase<|function(new:polymerElementBase):?|>
+        return super._parseTemplateContent(template, templateInfo, nodeInfo);
+               ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:812: WARNING - Dangerous use of the global THIS object
+      if (this.stack.length) {
+          ^^^^
+
+/polymer.html_script_11.js:813: WARNING - Dangerous use of the global THIS object
+        let host = this.stack[this.stack.length-1];
+                   ^^^^
+
+/polymer.html_script_11.js:813: WARNING - Dangerous use of the global THIS object
+        let host = this.stack[this.stack.length-1];
+                              ^^^^
+
+/polymer.html_script_11.js:819: WARNING - Dangerous use of the global THIS object
+      this.stack.push(inst);
+      ^^^^
+
+/polymer.html_script_11.js:823: WARNING - Dangerous use of the global THIS object
+      let stackLen = this.stack.length;
+                     ^^^^
+
+/polymer.html_script_11.js:824: WARNING - Dangerous use of the global THIS object
+      if (stackLen && this.stack[stackLen-1] == inst) {
+                      ^^^^
+
+/polymer.html_script_11.js:825: WARNING - Dangerous use of the global THIS object
+        this.stack.pop();
+        ^^^^
+
+/polymer.html_script_11.js:847: WARNING - Type annotation references non-existent type Polymer.Element.
+     * @type {Array<Polymer.Element>}
+                    ^^^^^^^^^^^^^^^
+
+/polymer.html_script_11.js:855: WARNING - Property is never defined on prototype of type HTMLElement
+      console.log('[' + prototype.is + ']: registered')
+                        ^^^^^^^^^^^^
+
+/polymer.html_script_11.js:863: WARNING - Dangerous use of the global THIS object
+      this.registrations.push(prototype);
+      ^^^^
+
+/polymer.html_script_11.js:864: WARNING - Dangerous use of the global THIS object
+      Polymer.log && this._regLog(prototype);
+                     ^^^^
+
+/polymer.html_script_11.js:871: WARNING - Dangerous use of the global THIS object
+      this.registrations.forEach(this._regLog);
+      ^^^^
+
+/polymer.html_script_11.js:871: WARNING - Dangerous use of the global THIS object
+      this.registrations.forEach(this._regLog);
+                                 ^^^^
+
+/polymer.html_script_12.js:60: WARNING - Type annotation references non-existent type Polymer.Debouncer.
+   * @param {Polymer.Debouncer?} debouncer Debouncer object.
+             ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_13.js:246: WARNING - Returned type does not match declared return type.
+Expected : HTMLElement|null
+Found    : Element|null
+More details:
+The found type is a union that includes an unexpected type: Element
+      return node;
+      ^^^^^^^^^^^^
+
+/polymer.html_script_13.js:258: WARNING - Returned type does not match declared return type.
+Expected : HTMLElement|null
+Found    : Document|Element|ShadowRoot|Window
+More details:
+The found type is a union that includes an unexpected type: Window
+        return ev.composedPath()[0];
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_13.js:261: WARNING - Returned type does not match declared return type.
+Expected : HTMLElement|null
+Found    : EventTarget|null
+More details:
+The found type is a union that includes an unexpected type: EventTarget
+      return ev.target;
+      ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_13.js:283: WARNING - Property changedTouches never defined on ev of type Event
+          let t = ev.changedTouches[0];
+                  ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_13.js:286: WARNING - Property touches never defined on ev of type Event
+            if (ev.touches.length === 1) {
+                ^^^^^^^^^^
+
+/polymer.html_script_13.js:330: WARNING - Property changedTouches never defined on ev of type Event
+      let t = ev.changedTouches[0];
+              ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_13.js:371: WARNING - Missing return statement. Function expected to return boolean.
+    addListener: function(node, evType, handler) {
+                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_13.js:372: WARNING - Dangerous use of the global THIS object
+      if (this.gestures[evType]) {
+          ^^^^
+
+/polymer.html_script_13.js:373: WARNING - Dangerous use of the global THIS object
+        this._add(node, evType, handler);
+        ^^^^
+
+/polymer.html_script_13.js:388: WARNING - Missing return statement. Function expected to return boolean.
+    removeListener: function(node, evType, handler) {
+                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_13.js:389: WARNING - Dangerous use of the global THIS object
+      if (this.gestures[evType]) {
+          ^^^^
+
+/polymer.html_script_13.js:390: WARNING - Dangerous use of the global THIS object
+        this._remove(node, evType, handler);
+        ^^^^
+
+/polymer.html_script_13.js:401: WARNING - Bad type annotation. missing opening ( See https://github.com/google/closure-compiler/wiki/Bad-Type-Annotation for more information.
+     * @param {function} handler Event handler function.
+                       ^
+
+/polymer.html_script_13.js:404: WARNING - Dangerous use of the global THIS object
+      let recognizer = this.gestures[evType];
+                       ^^^^
+
+/polymer.html_script_13.js:422: WARNING - Dangerous use of the global THIS object
+          node.addEventListener(dep, this._handleNative);
+                                     ^^^^
+
+/polymer.html_script_13.js:429: WARNING - Dangerous use of the global THIS object
+        this.setTouchAction(node, recognizer.touchAction);
+        ^^^^
+
+/polymer.html_script_13.js:439: WARNING - Bad type annotation. missing opening ( See https://github.com/google/closure-compiler/wiki/Bad-Type-Annotation for more information.
+     * @param {function} handler Event handler function.
+                       ^
+
+/polymer.html_script_13.js:442: WARNING - Dangerous use of the global THIS object
+      let recognizer = this.gestures[evType];
+                       ^^^^
+
+/polymer.html_script_13.js:454: WARNING - Dangerous use of the global THIS object
+              node.removeEventListener(dep, this._handleNative);
+                                            ^^^^
+
+/polymer.html_script_13.js:470: WARNING - Dangerous use of the global THIS object
+      this.recognizers.push(recog);
+      ^^^^
+
+/polymer.html_script_13.js:472: WARNING - Dangerous use of the global THIS object
+        this.gestures[recog.emits[i]] = recog;
+        ^^^^
+
+/polymer.html_script_13.js:482: WARNING - Dangerous use of the global THIS object
+      for (let i = 0, r; i < this.recognizers.length; i++) {
+                             ^^^^
+
+/polymer.html_script_13.js:483: WARNING - Dangerous use of the global THIS object
+        r = this.recognizers[i];
+            ^^^^
+
+/polymer.html_script_13.js:506: WARNING - Property style never defined on node of type Node
+        node.style.touchAction = value;
+        ^^^^^^^^^^
+
+/polymer.html_script_13.js:539: WARNING - Dangerous use of the global THIS object
+      let recognizer = this._findRecognizerByEvent(evName);
+                       ^^^^
+
+/polymer.html_script_13.js:576: WARNING - Dangerous use of the global THIS object
+      untrackDocument(this.info);
+                      ^^^^
+
+/polymer.html_script_13.js:597: WARNING - Dangerous use of the global THIS object
+      trackDocument(this.info, movefn, upfn);
+                    ^^^^
+
+/polymer.html_script_13.js:598: WARNING - Dangerous use of the global THIS object
+      this._fire('down', t, e);
+      ^^^^
+
+/polymer.html_script_13.js:601: WARNING - Dangerous use of the global THIS object
+      this._fire('down', Gestures._findOriginalTarget(e), e.changedTouches[0], e);
+      ^^^^
+
+/polymer.html_script_13.js:604: WARNING - Dangerous use of the global THIS object
+      this._fire('up', Gestures._findOriginalTarget(e), e.changedTouches[0], e);
+      ^^^^
+
+/polymer.html_script_13.js:636: WARNING - Dangerous use of the global THIS object
+        if (this.moves.length > TRACK_LENGTH) {
+            ^^^^
+
+/polymer.html_script_13.js:637: WARNING - Dangerous use of the global THIS object
+          this.moves.shift();
+          ^^^^
+
+/polymer.html_script_13.js:639: WARNING - Dangerous use of the global THIS object
+        this.moves.push(move);
+        ^^^^
+
+/polymer.html_script_13.js:647: WARNING - Dangerous use of the global THIS object
+      this.info.state = 'start';
+      ^^^^
+
+/polymer.html_script_13.js:648: WARNING - Dangerous use of the global THIS object
+      this.info.started = false;
+      ^^^^
+
+/polymer.html_script_13.js:649: WARNING - Dangerous use of the global THIS object
+      this.info.moves = [];
+      ^^^^
+
+/polymer.html_script_13.js:650: WARNING - Dangerous use of the global THIS object
+      this.info.x = 0;
+      ^^^^
+
+/polymer.html_script_13.js:651: WARNING - Dangerous use of the global THIS object
+      this.info.y = 0;
+      ^^^^
+
+/polymer.html_script_13.js:652: WARNING - Dangerous use of the global THIS object
+      this.info.prevent = false;
+      ^^^^
+
+/polymer.html_script_13.js:653: WARNING - Dangerous use of the global THIS object
+      untrackDocument(this.info);
+                      ^^^^
+
+/polymer.html_script_13.js:657: WARNING - Dangerous use of the global THIS object
+      if (this.info.prevent) {
+          ^^^^
+
+/polymer.html_script_13.js:660: WARNING - Dangerous use of the global THIS object
+      if (this.info.started) {
+          ^^^^
+
+/polymer.html_script_13.js:663: WARNING - Dangerous use of the global THIS object
+      let dx = Math.abs(this.info.x - x);
+                        ^^^^
+
+/polymer.html_script_13.js:664: WARNING - Dangerous use of the global THIS object
+      let dy = Math.abs(this.info.y - y);
+                        ^^^^
+
+/polymer.html_script_13.js:702: WARNING - Dangerous use of the global THIS object
+      trackDocument(this.info, movefn, upfn);
+                    ^^^^
+
+/polymer.html_script_13.js:703: WARNING - Dangerous use of the global THIS object
+      this.info.x = e.clientX;
+      ^^^^
+
+/polymer.html_script_13.js:704: WARNING - Dangerous use of the global THIS object
+      this.info.y = e.clientY;
+      ^^^^
+
+/polymer.html_script_13.js:709: WARNING - Dangerous use of the global THIS object
+      this.info.x = ct.clientX;
+      ^^^^
+
+/polymer.html_script_13.js:710: WARNING - Dangerous use of the global THIS object
+      this.info.y = ct.clientY;
+      ^^^^
+
+/polymer.html_script_13.js:717: WARNING - Dangerous use of the global THIS object
+      if (this.hasMovedEnough(x, y)) {
+          ^^^^
+
+/polymer.html_script_13.js:718: WARNING - Dangerous use of the global THIS object
+        if (this.info.state === 'start') {
+            ^^^^
+
+/polymer.html_script_13.js:722: WARNING - Dangerous use of the global THIS object
+        this.info.addMove({x: x, y: y});
+        ^^^^
+
+/polymer.html_script_13.js:723: WARNING - Dangerous use of the global THIS object
+        this._fire(t, ct);
+        ^^^^
+
+/polymer.html_script_13.js:724: WARNING - Dangerous use of the global THIS object
+        this.info.state = 'track';
+        ^^^^
+
+/polymer.html_script_13.js:725: WARNING - Dangerous use of the global THIS object
+        this.info.started = true;
+        ^^^^
+
+/polymer.html_script_13.js:733: WARNING - Dangerous use of the global THIS object
+      if (this.info.started) {
+          ^^^^
+
+/polymer.html_script_13.js:735: WARNING - Dangerous use of the global THIS object
+        this.info.state = 'end';
+        ^^^^
+
+/polymer.html_script_13.js:736: WARNING - Dangerous use of the global THIS object
+        this.info.addMove({x: ct.clientX, y: ct.clientY});
+        ^^^^
+
+/polymer.html_script_13.js:737: WARNING - Dangerous use of the global THIS object
+        this._fire(t, ct, e);
+        ^^^^
+
+/polymer.html_script_13.js:742: WARNING - Dangerous use of the global THIS object
+      let secondlast = this.info.moves[this.info.moves.length - 2];
+                       ^^^^
+
+/polymer.html_script_13.js:742: WARNING - Dangerous use of the global THIS object
+      let secondlast = this.info.moves[this.info.moves.length - 2];
+                                       ^^^^
+
+/polymer.html_script_13.js:743: WARNING - Dangerous use of the global THIS object
+      let lastmove = this.info.moves[this.info.moves.length - 1];
+                     ^^^^
+
+/polymer.html_script_13.js:743: WARNING - Dangerous use of the global THIS object
+      let lastmove = this.info.moves[this.info.moves.length - 1];
+                                     ^^^^
+
+/polymer.html_script_13.js:744: WARNING - Dangerous use of the global THIS object
+      let dx = lastmove.x - this.info.x;
+                            ^^^^
+
+/polymer.html_script_13.js:745: WARNING - Dangerous use of the global THIS object
+      let dy = lastmove.y - this.info.y;
+                            ^^^^
+
+/polymer.html_script_13.js:752: WARNING - Dangerous use of the global THIS object
+        state: this.info.state,
+               ^^^^
+
+/polymer.html_script_13.js:782: WARNING - Dangerous use of the global THIS object
+      this.info.x = NaN;
+      ^^^^
+
+/polymer.html_script_13.js:783: WARNING - Dangerous use of the global THIS object
+      this.info.y = NaN;
+      ^^^^
+
+/polymer.html_script_13.js:784: WARNING - Dangerous use of the global THIS object
+      this.info.prevent = false;
+      ^^^^
+
+/polymer.html_script_13.js:787: WARNING - Dangerous use of the global THIS object
+      this.info.x = e.clientX;
+      ^^^^
+
+/polymer.html_script_13.js:788: WARNING - Dangerous use of the global THIS object
+      this.info.y = e.clientY;
+      ^^^^
+
+/polymer.html_script_13.js:793: WARNING - Dangerous use of the global THIS object
+        this.save(e);
+        ^^^^
+
+/polymer.html_script_13.js:798: WARNING - Dangerous use of the global THIS object
+        this.forward(e);
+        ^^^^
+
+/polymer.html_script_13.js:803: WARNING - Dangerous use of the global THIS object
+      this.save(e.changedTouches[0], e);
+      ^^^^
+
+/polymer.html_script_13.js:806: WARNING - Dangerous use of the global THIS object
+      this.forward(e.changedTouches[0], e);
+      ^^^^
+
+/polymer.html_script_13.js:810: WARNING - Dangerous use of the global THIS object
+      let dx = Math.abs(e.clientX - this.info.x);
+                                    ^^^^
+
+/polymer.html_script_13.js:811: WARNING - Dangerous use of the global THIS object
+      let dy = Math.abs(e.clientY - this.info.y);
+                                    ^^^^
+
+/polymer.html_script_13.js:816: WARNING - Dangerous use of the global THIS object
+        if (!this.info.prevent) {
+             ^^^^
+
+/polymer.html_script_14.js:6: WARNING - All constants must be typed. The compiler could not infer the type of constant gestures. Please use an explicit type annotation. For more information, see:
+https://github.com/google/closure-compiler/wiki/Using-NTI-(new-type-inference)#warnings-about-uninferred-constants
+  const gestures = Polymer.Gestures;
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_14.js:28: WARNING - GestureEventListeners extends non-object type ?.
+
+    class GestureEventListeners extends superClass {
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_15.js:91: WARNING - Returned type does not match declared return type.
+Expected : HTMLLinkElement|null
+Found    : Element{__dynamicImportLoaded:truthy=, href:string=, parentNode:Node|null, rel:string=}
+
+    return link;
+    ^^^^^^^^^^^^
+
+/polymer.html_script_18.js:51: WARNING - Dangerous use of the global THIS object
+          if (this.equals(current[currentStart + j - 1], old[oldStart + i - 1]))
+              ^^^^
+
+/polymer.html_script_18.js:166: WARNING - Dangerous use of the global THIS object
+        prefixCount = this.sharedPrefix(current, old, minLength);
+                      ^^^^
+
+/polymer.html_script_18.js:169: WARNING - Dangerous use of the global THIS object
+        suffixCount = this.sharedSuffix(current, old, minLength - prefixCount);
+                      ^^^^
+
+/polymer.html_script_18.js:188: WARNING - Dangerous use of the global THIS object
+      let ops = this.spliceOperationsFromEditDistances(
+                ^^^^
+
+/polymer.html_script_18.js:189: WARNING - Dangerous use of the global THIS object
+          this.calcEditDistances(current, currentStart, currentEnd,
+          ^^^^
+
+/polymer.html_script_18.js:242: WARNING - Dangerous use of the global THIS object
+        if (!this.equals(current[i], old[i]))
+             ^^^^
+
+/polymer.html_script_18.js:251: WARNING - Dangerous use of the global THIS object
+      while (count < searchLength && this.equals(current[--index1], old[--index2]))
+                                     ^^^^
+
+/polymer.html_script_18.js:258: WARNING - Dangerous use of the global THIS object
+      return this.calcSplices(current, 0, current.length, previous, 0,
+             ^^^^
+
+/polymer.html_script_19.js:36: WARNING - Misplaced function annotation. This JSDoc is not attached to a function node. Are you missing parentheses?
+  class FlattenedNodesObserver {
+  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_19.js:51: WARNING - Invalid type for parameter 1 of function isSlot.
+Expected : {localName:?} (loose)
+Found    : Node|null
+More details:
+The found type is a union that includes an unexpected type: null
+      if (isSlot(node)) {
+                 ^^^^
+
+/polymer.html_script_19.js:52: WARNING - Property assignedNodes never defined on node of type Node
+        return node.assignedNodes({flatten: true});
+               ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_19.js:166: WARNING - Returned type does not match declared return type.
+Expected : boolean
+Found    : undefined
+
+        return;
+        ^^^^^^^
+
+/polymer.html_script_21.js:6: WARNING - All constants must be typed. The compiler could not infer the type of constant normalizedMatchesSelector. Please use an explicit type annotation. For more information, see:
+https://github.com/google/closure-compiler/wiki/Using-NTI-(new-type-inference)#warnings-about-uninferred-constants
+  const normalizedMatchesSelector = p.matches || p.matchesSelector ||
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_21.js:140: WARNING - Type annotation references non-existent type type.
+     * @return {type} Description
+                ^^^^
+
+/polymer.html_script_21.js:181: WARNING - Dangerous use of the global THIS object
+        return this.node[method].apply(this.node, arguments);
+               ^^^^
+
+/polymer.html_script_21.js:181: WARNING - Dangerous use of the global THIS object
+        return this.node[method].apply(this.node, arguments);
+                                       ^^^^
+
+/polymer.html_script_21.js:191: WARNING - Dangerous use of the global THIS object
+          return this.node[name];
+                 ^^^^
+
+/polymer.html_script_21.js:203: WARNING - Dangerous use of the global THIS object
+          return this.node[name];
+                 ^^^^
+
+/polymer.html_script_21.js:206: WARNING - Dangerous use of the global THIS object
+          this.node[name] = value;
+          ^^^^
+
+/polymer.html_script_21.js:320: WARNING - Property polyfillWrapFlushCallback never defined on window.customElements of type CustomElementRegistry
+    !(window.customElements.polyfillWrapFlushCallback);
+      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:30: WARNING - legacyElementBase extends non-object type ?.
+
+    const legacyElementBase = Polymer.GestureEventListeners(Polymer.ElementMixin(base));
+                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:45: WARNING - Cannot implement non-interface ?
+     * @implements {Polymer_LegacyElement}
+                    ^
+
+/polymer.html_script_22.js:45: WARNING - Type annotation references non-existent type Polymer_LegacyElement.
+     * @implements {Polymer_LegacyElement}
+                    ^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:63: WARNING - Cannot add property isAttached to a struct instance after it is constructed.
+        this.isAttached = true;
+        ^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:75: WARNING - Cannot add property isAttached to a struct instance after it is constructed.
+        this.isAttached = false;
+        ^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:88: WARNING - Function this.attributeChanged: called with 3 argument(s). Function requires at least 0 argument(s) and at most 0.
+          this.attributeChanged(name, old, value);
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:172: WARNING - Returned type does not match declared return type.
+Expected : string
+Found    : string|undefined
+More details:
+The found type is a union that includes an unexpected type: undefined
+        return this._serializeValue(value);
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:217: WARNING - Invalid type for parameter 1 of function this._valueToNodeAttribute.
+Expected : Element|null
+Found    : Element|LegacyElement
+More details:
+The found type is a union that includes an unexpected type: LegacyElement
+        this._valueToNodeAttribute(node || this, value, attribute);
+                                   ^^^^^^^^^^^^
+
+/polymer.html_script_22.js:314: WARNING - Property cancelable never defined on options of type {bubbles:boolean|undefined}
+          cancelable: Boolean(options.cancelable),
+                              ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:332: WARNING - The right side in the assignment is not a subtype of the left side.
+Expected : Element|null
+Found    : Element|LegacyElement
+More details:
+The found type is a union that includes an unexpected type: LegacyElement
+        node = node || this;
+        ^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:334: WARNING - Cannot add property __boundListeners to a struct instance after it is constructed.
+          (this.__boundListeners = new WeakMap());
+           ^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:357: WARNING - The right side in the assignment is not a subtype of the left side.
+Expected : Element|null
+Found    : Element|LegacyElement
+More details:
+The found type is a union that includes an unexpected type: LegacyElement
+        node = node || this;
+        ^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:404: WARNING - Property getRootNode never defined on this of type LegacyElement
+        let root = this.getRootNode();
+                   ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:405: WARNING - Property host never defined on root of type DocumentFragment
+        return (root instanceof DocumentFragment) ? root.host : root;
+                                                    ^^^^^^^^^
+
+/polymer.html_script_22.js:418: WARNING - Property forceRender never defined on any type in the program
+          this.shadowRoot.forceRender();
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:431: WARNING - Property getEffectiveChildNodes may not be present on DomApi|EventApi.
+        return Polymer.dom(this).getEffectiveChildNodes();
+               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:431: WARNING - Invalid type for parameter 1 of function Polymer.dom.
+Expected : Event|Node|null
+Found    : LegacyElement
+
+        return Polymer.dom(this).getEffectiveChildNodes();
+                           ^^^^
+
+/polymer.html_script_22.js:442: WARNING - Property queryDistributedElements may not be present on DomApi|EventApi.
+        return Polymer.dom(this).queryDistributedElements(selector);
+               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:442: WARNING - Invalid type for parameter 1 of function Polymer.dom.
+Expected : Event|Node|null
+Found    : LegacyElement
+
+        return Polymer.dom(this).queryDistributedElements(selector);
+                           ^^^^
+
+/polymer.html_script_22.js:455: WARNING - Invalid type for parameter 1 of function list.filter.
+Expected : function(this:?,Node|null,number,Array<Node|null>):?|null
+Found    : function({nodeType:?} (loose)):boolean
+
+        return list.filter(function(n) {
+                           ^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:513: WARNING - Property getDistributedNodes may not be present on DomApi|EventApi.
+        return content ? Polymer.dom(content).getDistributedNodes() : [];
+                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:543: WARNING - Cannot perform strict equality / inequality comparisons on incompatible types:
+left : LegacyElement
+right: Node|null
+        return this !== node && this.contains(node) &&
+               ^^^^
+
+/polymer.html_script_22.js:543: WARNING - Property contains never defined on this of type LegacyElement
+        return this !== node && this.contains(node) &&
+                                ^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:544: WARNING - Property getRootNode never defined on this of type LegacyElement
+            this.getRootNode() === node.getRootNode();
+            ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:598: WARNING - Cannot add property _debouncers to a struct instance after it is constructed.
+        this._debouncers = this._debouncers || {};
+        ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:612: WARNING - Cannot add property _debouncers to a struct instance after it is constructed.
+        this._debouncers = this._debouncers || {};
+        ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:623: WARNING - Cannot add property _debouncers to a struct instance after it is constructed.
+        this._debouncers = this._debouncers || {};
+        ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:636: WARNING - Cannot add property _debouncers to a struct instance after it is constructed.
+        this._debouncers = this._debouncers || {}
+        ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:657: WARNING - Invalid type(s) for operator BITNOT.
+Expected : number
+Found    : *
+
+            ~Polymer.Async.microTask.run(callback.bind(this));
+             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:727: WARNING - Invalid type for parameter 1 of function Polymer.dom.matchesSelector.
+Expected : Node|null
+Found    : Element|LegacyElement
+More details:
+The found type is a union that includes an unexpected type: LegacyElement
+        return Polymer.dom.matchesSelector(node || this, selector);
+                                           ^^^^^^^^^^^^
+
+/polymer.html_script_22.js:739: WARNING - The right side in the assignment is not a subtype of the left side.
+Expected : HTMLElement|null|undefined
+Found    : HTMLElement|LegacyElement
+More details:
+The found type is a union that includes an unexpected type: LegacyElement
+        node = node || this;
+        ^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:760: WARNING - The right side in the assignment is not a subtype of the left side.
+Expected : HTMLElement|null|undefined
+Found    : HTMLElement|LegacyElement
+More details:
+The found type is a union that includes an unexpected type: LegacyElement
+        node = node || this;
+        ^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:779: WARNING - The right side in the assignment is not a subtype of the left side.
+Expected : HTMLElement|null|undefined
+Found    : HTMLElement|LegacyElement
+More details:
+The found type is a union that includes an unexpected type: LegacyElement
+        node = node || this;
+        ^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:795: WARNING - The right side in the assignment is not a subtype of the left side.
+Expected : HTMLElement|null|undefined
+Found    : HTMLElement|LegacyElement
+More details:
+The found type is a union that includes an unexpected type: LegacyElement
+        node = node || this;
+        ^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:825: WARNING - Function this.splice: called with 3 argument(s). Function requires at least 4 argument(s) and at most 4.
+            return this.splice(arrayOrPath, index, 1);
+                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:857: WARNING - parameter var_args does not appear in LegacyElement.prototype._log's parameter list
+      _log(...args) {
+      ^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:866: WARNING - parameter var_args does not appear in LegacyElement.prototype._warn's parameter list
+      _warn(...args) {
+      ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:875: WARNING - parameter var_args does not appear in LegacyElement.prototype._error's parameter list
+      _error(...args) {
+      ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:887: WARNING - parameter methodName does not appear in LegacyElement.prototype._logf's parameter list
+      _logf(...args) {
+      ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:887: WARNING - parameter var_args does not appear in LegacyElement.prototype._logf's parameter list
+      _logf(...args) {
+      ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:888: WARNING - Returned type does not match declared return type.
+Expected : string
+Found    : Array<?>
+
+        return ['[%s::%s]', this.is, ...args];
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_22.js:888: WARNING - Property is never defined on this of type LegacyElement
+        return ['[%s::%s]', this.is, ...args];
+                            ^^^^^^^
+
+/polymer.html_script_23.js:49: WARNING - Invalid type for parameter 1 of function _mixinBehaviors.
+Expected : {length:?} (loose)
+Found    : Array<?>|null
+More details:
+The found type is a union that includes an unexpected type: null
+      klass = _mixinBehaviors(behaviors, klass);
+                              ^^^^^^^^^
+
+/polymer.html_script_23.js:141: WARNING - Property is never defined on this of type PolymerGenerated
+            Polymer.DomModule.import(this.is, 'template') ||
+                                     ^^^^^^^
+
+/polymer.html_script_23.js:146: WARNING - Property prototype never defined on this of type PolymerGenerated
+            this.prototype._template;
+            ^^^^^^^^^^^^^^
+
+/polymer.html_script_23.js:177: WARNING - Property _addMethodEventListenerToNode never defined on this of type PolymerGenerated
+              this._addMethodEventListenerToNode(this, l, info.listeners[l]);
+              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_23.js:188: WARNING - Property _ensureAttribute never defined on this of type PolymerGenerated
+              this._ensureAttribute(a, info.hostAttributes[a]);
+              ^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_23.js:304: WARNING - Type annotation references non-existent type Polymer.LegacyElement.
+     * @return {Polymer.LegacyElement} Generated class
+                ^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_23.js:313: WARNING - Invalid type for parameter 2 of function mixinBehaviors.
+Expected : HTMLElement|null
+Found    : HTMLElement<|function(new:HTMLElement):?|>
+
+        mixinBehaviors(info.behaviors, HTMLElement) :
+                                       ^^^^^^^^^^^
+
+/polymer.html_script_23.js:316: WARNING - Property is never defined on info of type Object
+      klass.is = info.is;
+                 ^^^^^^^
+
+/polymer.html_script_24.js:19: WARNING - Type annotation references non-existent type Polymer.LegacyElement.
+     * @return {Polymer.LegacyElement} Generated class
+                ^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_24.js:21: WARNING - Found two declarations for property _polymerFn on window.Polymer.
+
+    window.Polymer._polymerFn = function(info) {
+    ^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_25.js:67: WARNING - MutableData extends non-object type ?.
+
+    class MutableData extends superClass {
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_25.js:138: WARNING - OptionalMutableData extends non-object type ?.
+
+    class OptionalMutableData extends superClass {
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_25.js:170: WARNING - Property mutableData never defined on this of type OptionalMutableData
+        return mutablePropertyChange(this, property, value, old, this.mutableData);
+                                                                 ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:17: WARNING - All constants must be typed. The compiler could not infer the type of constant DataTemplate. Please use an explicit type annotation. For more information, see:
+https://github.com/google/closure-compiler/wiki/Using-NTI-(new-type-inference)#warnings-about-uninferred-constants
+    const DataTemplate = Polymer.PropertyEffects(HTMLTemplateElementExtension);
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:18: WARNING - All constants must be typed. The compiler could not infer the type of constant MutableDataTemplate. Please use an explicit type annotation. For more information, see:
+https://github.com/google/closure-compiler/wiki/Using-NTI-(new-type-inference)#warnings-about-uninferred-constants
+    const MutableDataTemplate = Polymer.MutableData(DataTemplate);
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:38: WARNING - Property __dataHost never defined on this of type TemplateInstanceBase
+        this.root = this._stampTemplate(this.__dataHost);
+                                        ^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:45: WARNING - Property __templatizeOwner never defined on this of type TemplateInstanceBase{children:Array<?>, root:DocumentFragment}
+        if (this.__templatizeOwner.__hideTemplateChildren__) {
+            ^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:50: WARNING - Property __templatizeOptions never defined on this of type TemplateInstanceBase{children:Array<?>, root:DocumentFragment}
+        let options = this.__templatizeOptions;
+                      ^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:62: WARNING - Property __templatizeOptions never defined on this of type TemplateInstanceBase
+        let options = this.__templatizeOptions;
+                      ^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:66: WARNING - Function this._setPendingProperty: called with 2 argument(s). Function requires at least 3 argument(s) and at most 3.
+              this._setPendingProperty(iprop, props[iprop]);
+              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:70: WARNING - Property __hostProps never defined on this of type TemplateInstanceBase
+        for (let hprop in this.__hostProps) {
+                          ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:71: WARNING - Function this._setPendingProperty: called with 2 argument(s). Function requires at least 3 argument(s) and at most 3.
+          this._setPendingProperty(hprop, this.__dataHost['_host_' + hprop]);
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:71: WARNING - Property __dataHost never defined on this of type TemplateInstanceBase
+          this._setPendingProperty(hprop, this.__dataHost['_host_' + hprop]);
+                                          ^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:86: WARNING - Property __dataHost never defined on this of type TemplateInstanceBase
+          this.__dataHost._enqueueClient(this);
+          ^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:93: WARNING - Property __templatizeOptions never defined on this of type TemplateInstanceBase{_methodHost:truthy}
+        if (this._methodHost && this.__templatizeOptions.parentModel) {
+                                ^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:103: WARNING - Property __dataHost never defined on this of type TemplateInstanceBase{_methodHost:truthy=}
+          let templateHost = this.__dataHost.__dataHost;
+                             ^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:165: WARNING - Type annotation references non-existent type Polymer.PropertyEffectsInterface.
+       * @return {Polymer.PropertyEffectsInterface} The parent model of this instance
+                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:168: WARNING - Property __parentModel never defined on this of type TemplateInstanceBase
+        let model = this.__parentModel;
+                    ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:175: WARNING - Property __dataHost never defined on model of type TemplateInstanceBase
+            model = model.__dataHost.__dataHost;
+                    ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:177: WARNING - Cannot add property __parentModel to a struct instance after it is constructed.
+          this.__parentModel = model;
+          ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:183: WARNING - All constants must be typed. The compiler could not infer the type of constant MutableTemplateInstanceBase. Please use an explicit type annotation. For more information, see:
+https://github.com/google/closure-compiler/wiki/Using-NTI-(new-type-inference)#warnings-about-uninferred-constants
+    const MutableTemplateInstanceBase = Polymer.MutableData(TemplateInstanceBase);
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:204: WARNING - Property _bindTemplate never defined on klass.prototype of type klass.prototype
+      klass.prototype._bindTemplate(template);
+      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:222: WARNING - Property _addPropertyEffect never defined on klass.prototype of type $polymer_html_script_26$classdecl$var1.prototype
+            klass.prototype._addPropertyEffect('_host_' + prop,
+            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:223: WARNING - Property PROPERTY_EFFECT_TYPES never defined on klass.prototype of type $polymer_html_script_26$classdecl$var1.prototype
+              klass.prototype.PROPERTY_EFFECT_TYPES.PROPAGATE,
+              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:225: WARNING - Property _createNotifyingProperty never defined on klass.prototype of type $polymer_html_script_26$classdecl$var1.prototype
+            klass.prototype._createNotifyingProperty('_host_' + prop);
+            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:391: WARNING - Cannot access property constructor of non-object type *.
+        let templateInfo = owner.constructor._parseTemplate(template);
+                           ^^^^^
+
+/polymer.html_script_26.js:396: WARNING - Invalid type for parameter 3 of function createTemplatizerClass.
+Expected : Object
+Found    : *
+
+          baseClass = createTemplatizerClass(template, templateInfo, options);
+                                                                     ^^^^^^^
+
+/polymer.html_script_26.js:400: WARNING - Invalid type for parameter 3 of function addPropagateEffects.
+Expected : {forwardHostProp:?} (loose)
+Found    : *
+
+        addPropagateEffects(template, templateInfo, options);
+                                                    ^^^^^^^
+
+/polymer.html_script_26.js:407: WARNING - Returned type does not match declared return type.
+Expected : TemplateInstanceBase|null
+Found    : $polymer_html_script_26$classdecl$var2<|function(new:$polymer_html_script_26$classdecl$var2,...?):undefined|>{prototype:$polymer_html_script_26$classdecl$var2.prototype}
+
+        return klass;
+        ^^^^^^^^^^^^^
+
+/polymer.html_script_26.js:448: WARNING - The right side in the assignment is not a subtype of the left side.
+Expected : HTMLElement|null
+Found    : Node|null
+More details:
+The found type is a union that includes an unexpected type: Node
+            el = el.parentNode;
+            ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_27.js:80: WARNING - Dangerous use of the global THIS object
+        this._templatizerTemplate = template;
+        ^^^^
+
+/polymer.html_script_27.js:81: WARNING - Dangerous use of the global THIS object
+        this.ctor = Polymer.Templatize.templatize(template, this, {
+        ^^^^
+
+/polymer.html_script_27.js:83: WARNING - Dangerous use of the global THIS object
+          parentModel: this._parentModel,
+                       ^^^^
+
+/polymer.html_script_27.js:83: WARNING - Property _parentModel never defined on any type in the program
+          parentModel: this._parentModel,
+                       ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_27.js:84: WARNING - Dangerous use of the global THIS object
+          instanceProps: this._instanceProps,
+                         ^^^^
+
+/polymer.html_script_27.js:84: WARNING - Property _instanceProps never defined on any type in the program
+          instanceProps: this._instanceProps,
+                         ^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_27.js:85: WARNING - Dangerous use of the global THIS object
+          forwardHostProp: this._forwardHostPropV2,
+                           ^^^^
+
+/polymer.html_script_27.js:85: WARNING - Property _forwardHostPropV2 never defined on any type in the program
+          forwardHostProp: this._forwardHostPropV2,
+                           ^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_27.js:86: WARNING - Dangerous use of the global THIS object
+          notifyInstanceProp: this._notifyInstancePropV2
+                              ^^^^
+
+/polymer.html_script_27.js:86: WARNING - Property _notifyInstancePropV2 never defined on any type in the program
+          notifyInstanceProp: this._notifyInstancePropV2
+                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_27.js:99: WARNING - Type annotation references non-existent type TemplateInstanceBase.
+       * @return {TemplateInstanceBase} Returns the created instance of
+                  ^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_27.js:103: WARNING - Dangerous use of the global THIS object
+        return new this.ctor(model);
+                   ^^^^
+
+/polymer.html_script_27.js:113: WARNING - Type annotation references non-existent type TemplateInstanceBase.
+       * @return {TemplateInstanceBase} Model representing the binding scope for
+                  ^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_27.js:117: WARNING - Dangerous use of the global THIS object
+        return Polymer.Templatize.modelForElement(this._templatizerTemplate, el);
+                                                  ^^^^
+
+/polymer.html_script_28.js:10: WARNING - Cannot implement non-interface ?
+     * @implements {Polymer_GestureEventListener}
+                    ^
+
+/polymer.html_script_28.js:10: WARNING - Type annotation references non-existent type Polymer_GestureEventListener.
+     * @implements {Polymer_GestureEventListener}
+                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_28.js:40: WARNING - Cannot add property mutableData to a struct instance after it is constructed.
+        this.mutableData = true;
+        ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_28.js:52: WARNING - Property root never defined on this of type DomBind{parentNode:Node}
+        this.parentNode.insertBefore(this.root, this);
+                                     ^^^^^^^^^
+
+/polymer.html_script_28.js:58: WARNING - Property root never defined on this of type DomBind{__children:{length:number} (loose)}
+            this.root.appendChild(this.__children[i]);
+            ^^^^^^^^^
+
+/polymer.html_script_28.js:77: WARNING - Function $jscomp$this.render: called with 1 argument(s). Function requires at least 0 argument(s) and at most 0.
+                this.render(template);
+                ^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_28.js:85: WARNING - Cannot add property root to a struct instance after it is constructed.
+          this.root = this._stampTemplate(template);
+          ^^^^^^^^^
+
+/polymer.html_script_28.js:85: WARNING - Property _stampTemplate never defined on this of type DomBind
+          this.root = this._stampTemplate(template);
+                      ^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_28.js:86: WARNING - Cannot add property $ to a struct instance after it is constructed.
+          this.$ = this.root.$;
+          ^^^^^^
+
+/polymer.html_script_28.js:86: WARNING - Property root never defined on this of type DomBind
+          this.$ = this.root.$;
+                   ^^^^^^^^^
+
+/polymer.html_script_28.js:87: WARNING - Cannot add property __children to a struct instance after it is constructed.
+          this.__children = [];
+          ^^^^^^^^^^^^^^^
+
+/polymer.html_script_28.js:88: WARNING - Property root never defined on this of type DomBind
+          for (let n=this.root.firstChild; n; n=n.nextSibling) {
+                     ^^^^^^^^^
+
+/polymer.html_script_28.js:89: WARNING - Property __children never defined on this of type DomBind
+            this.__children[this.__children.length] = n;
+            ^^^^^^^^^^^^^^^
+
+/polymer.html_script_28.js:89: WARNING - Property __children never defined on this of type DomBind
+            this.__children[this.__children.length] = n;
+                            ^^^^^^^^^^^^^^^
+
+/polymer.html_script_28.js:91: WARNING - Property _flushProperties never defined on this of type DomBind
+          this._flushProperties();
+          ^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:274: WARNING - Property disconnectedCallback never defined on domRepeatBase.prototype of type domRepeatBase.prototype
+      super.disconnectedCallback();
+      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:275: WARNING - Cannot add property __isDetached to a struct instance after it is constructed.
+      this.__isDetached = true;
+      ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:282: WARNING - Property connectedCallback never defined on domRepeatBase.prototype of type domRepeatBase.prototype
+      super.connectedCallback();
+      ^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:286: WARNING - Property parentNode never defined on this of type DomRepeat{__isDetached:boolean}
+        let parent = this.parentNode;
+                     ^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:298: WARNING - Cannot add property template to a struct instance after it is constructed.
+        let template = this.template = this.querySelector('template');
+                       ^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:298: WARNING - Property querySelector never defined on this of type DomRepeat
+        let template = this.template = this.querySelector('template');
+                                       ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:302: WARNING - Property querySelector never defined on $jscomp$this of type DomRepeat
+            if (this.querySelector('template')) {
+                ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:309: WARNING - Invalid type for parameter 1 of function observer.observe.
+Expected : Node|null
+Found    : DomRepeat
+
+          observer.observe(this, {childList: true});
+                           ^^^^
+
+/polymer.html_script_30.js:314: WARNING - Property as never defined on this of type DomRepeat
+        instanceProps[this.as] = true;
+                      ^^^^^^^
+
+/polymer.html_script_30.js:315: WARNING - Property indexAs never defined on this of type DomRepeat
+        instanceProps[this.indexAs] = true;
+                      ^^^^^^^^^^^^
+
+/polymer.html_script_30.js:316: WARNING - Property itemsIndexAs never defined on this of type DomRepeat
+        instanceProps[this.itemsIndexAs] = true;
+                      ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:318: WARNING - Property mutableData never defined on this of type DomRepeat
+          mutableData: this.mutableData,
+                       ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:322: WARNING - Dangerous use of the global THIS object
+            let i$ = this.__instances;
+                     ^^^^
+
+/polymer.html_script_30.js:328: WARNING - Dangerous use of the global THIS object
+            if (Polymer.Path.matches(this.as, prop)) {
+                                     ^^^^
+
+/polymer.html_script_30.js:329: WARNING - Dangerous use of the global THIS object
+              let idx = inst[this.itemsIndexAs];
+                             ^^^^
+
+/polymer.html_script_30.js:330: WARNING - Dangerous use of the global THIS object
+              if (prop == this.as) {
+                          ^^^^
+
+/polymer.html_script_30.js:331: WARNING - Dangerous use of the global THIS object
+                this.items[idx] = value;
+                ^^^^
+
+/polymer.html_script_30.js:333: WARNING - Dangerous use of the global THIS object
+              let path = Polymer.Path.translate(this.as, 'items.' + idx, prop);
+                                                ^^^^
+
+/polymer.html_script_30.js:334: WARNING - Dangerous use of the global THIS object
+              this.notifyPath(path, value);
+              ^^^^
+
+/polymer.html_script_30.js:348: WARNING - Property __dataHost never defined on this of type DomRepeat
+      return this.__dataHost._methodHost || this.__dataHost;
+             ^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:357: WARNING - Invalid type for parameter 1 of function this.__debounceRender.
+Expected : function():?
+Found    : function(this:DomRepeat):?
+
+        this.__debounceRender(this.__render);
+                              ^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:367: WARNING - Invalid type for parameter 1 of function this.__debounceRender.
+Expected : function():?
+Found    : function(this:DomRepeat):?
+
+        this.__debounceRender(this.__render);
+                              ^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:387: WARNING - Invalid type for parameter 1 of function this.__debounceRender.
+Expected : function():?
+Found    : function(this:DomRepeat):?
+
+        this.__debounceRender(this.__requestRenderChunk);
+                              ^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:400: WARNING - Property _targetFrameTime never defined on this of type DomRepeat
+      let ratio = this._targetFrameTime / (currChunkTime - this.__lastChunkTime);
+                  ^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:404: WARNING - Invalid type for parameter 1 of function this.__debounceRender.
+Expected : function():?
+Found    : function(this:DomRepeat):?
+
+      this.__debounceRender(this.__render);
+                            ^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:423: WARNING - Invalid type for parameter 1 of function this.__debounceRender.
+Expected : function():?
+Found    : function(this:DomRepeat):?
+
+        this.__debounceRender(this.__render);
+                              ^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:434: WARNING - Invalid type for parameter 1 of function this.__debounceRender.
+Expected : function():?
+Found    : function(this:DomRepeat):?
+
+            this.__debounceRender(this.__render, this.delay);
+                                  ^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:434: WARNING - Property delay never defined on this of type DomRepeat{__needFullRefresh:boolean, __observePaths:truthy}
+            this.__debounceRender(this.__render, this.delay);
+                                                 ^^^^^^^^^^
+
+/polymer.html_script_30.js:448: WARNING - Invalid type for parameter 1 of function Polymer.Async.timeOut.after.
+Expected : number
+Found    : number|undefined
+More details:
+The found type is a union that includes an unexpected type: undefined
+          , delay > 0 ? Polymer.Async.timeOut.after(delay) : Polymer.Async.microTask
+                                                    ^^^^^
+
+/polymer.html_script_30.js:463: WARNING - Invalid type for parameter 1 of function this.__debounceRender.
+Expected : function():?
+Found    : function(this:DomRepeat):?
+
+      this.__debounceRender(this.__render);
+                            ^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:480: WARNING - Property _setRenderedItemCount never defined on this of type DomRepeat{__pool:{length:number} (loose)}
+      this._setRenderedItemCount(this.__instances.length);
+      ^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:482: WARNING - Property dispatchEvent never defined on this of type DomRepeat{__instances:{length:?} (loose), __pool:{length:number} (loose)}
+      this.dispatchEvent(new CustomEvent('dom-change', {
+      ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:491: WARNING - All constants must be typed. The compiler could not infer the type of constant items. Please use an explicit type annotation. For more information, see:
+https://github.com/google/closure-compiler/wiki/Using-NTI-(new-type-inference)#warnings-about-uninferred-constants
+      const items = this.items || [];
+            ^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:516: WARNING - Property as never defined on this of type DomRepeat{__instances:Object, __itemsIdxToInstIdx:Object{}, __limit:number, items:?=}
+          inst._setPendingProperty(this.as, item);
+                                   ^^^^^^^
+
+/polymer.html_script_30.js:517: WARNING - Property indexAs never defined on this of type DomRepeat{__instances:Object, __itemsIdxToInstIdx:Object{}, __limit:number, items:?=}
+          inst._setPendingProperty(this.indexAs, instIdx);
+                                   ^^^^^^^^^^^^
+
+/polymer.html_script_30.js:518: WARNING - Property itemsIndexAs never defined on this of type DomRepeat{__instances:Object, __itemsIdxToInstIdx:Object{}, __limit:number, items:?=}
+          inst._setPendingProperty(this.itemsIndexAs, itemIdx);
+                                   ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:554: WARNING - Property as never defined on this of type DomRepeat
+      model[this.as] = item;
+            ^^^^^^^
+
+/polymer.html_script_30.js:555: WARNING - Property indexAs never defined on this of type DomRepeat
+      model[this.indexAs] = instIdx;
+            ^^^^^^^^^^^^
+
+/polymer.html_script_30.js:556: WARNING - Property itemsIndexAs never defined on this of type DomRepeat
+      model[this.itemsIndexAs] = itemIdx;
+            ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:565: WARNING - Property as never defined on this of type DomRepeat{__pool:{pop:LOOSE_TOP_FUNCTION} (loose)}
+        inst._setPendingProperty(this.as, item);
+                                 ^^^^^^^
+
+/polymer.html_script_30.js:566: WARNING - Property indexAs never defined on this of type DomRepeat{__pool:{pop:LOOSE_TOP_FUNCTION} (loose)}
+        inst._setPendingProperty(this.indexAs, instIdx);
+                                 ^^^^^^^^^^^^
+
+/polymer.html_script_30.js:567: WARNING - Property itemsIndexAs never defined on this of type DomRepeat{__pool:{pop:LOOSE_TOP_FUNCTION} (loose)}
+        inst._setPendingProperty(this.itemsIndexAs, itemIdx);
+                                 ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:574: WARNING - Property parentNode never defined on this of type DomRepeat{__instances:Object, __pool:{pop:LOOSE_TOP_FUNCTION} (loose)}
+      this.parentNode.insertBefore(inst.root, beforeNode);
+      ^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:601: WARNING - Property as never defined on this of type DomRepeat{__instances:Object, __itemsIdxToInstIdx:Object}
+            let itemPath = this.as + (itemSubPath ? '.' + itemSubPath : '');
+                           ^^^^^^^
+
+/polymer.html_script_30.js:625: WARNING - Property as never defined on this of type DomRepeat
+      return instance && instance[this.as];
+                                  ^^^^^^^
+
+/polymer.html_script_30.js:639: WARNING - Property indexAs never defined on this of type DomRepeat
+      return instance && instance[this.indexAs];
+                                  ^^^^^^^^^^^^
+
+/polymer.html_script_30.js:656: WARNING - Type annotation references non-existent type TemplateInstanceBase.
+     * @return {TemplateInstanceBase} Model representing the binding scope for
+                ^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:660: WARNING - Property template never defined on this of type DomRepeat
+      return Polymer.Templatize.modelForElement(this.template, el);
+                                                ^^^^^^^^^^^^^
+
+/polymer.html_script_30.js:665: WARNING - Invalid type for parameter 2 of function customElements.define.
+Expected : function(new:HTMLElement):?
+Found    : DomRepeat<|function(new:DomRepeat):undefined|>
+
+  customElements.define(DomRepeat.is, DomRepeat);
+                                      ^^^^^^^^^
+
+/polymer.html_script_31.js:142: WARNING - Property _lastIf never defined on this of type DomIf{__instance:?, if:?=, restamp:?=}
+      if (this.if != this._lastIf) {
+                     ^^^^^^^^^^^^
+
+/polymer.html_script_31.js:143: WARNING - Property dispatchEvent never defined on this of type DomIf{__instance:?, if:?=, restamp:?=}
+        this.dispatchEvent(new CustomEvent('dom-change', {
+        ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_31.js:147: WARNING - Cannot add property _lastIf to a struct instance after it is constructed.
+        this._lastIf = this.if;
+        ^^^^^^^^^^^^
+
+/polymer.html_script_31.js:152: WARNING - Property parentNode never defined on this of type DomIf
+      let parentNode = this.parentNode;
+                       ^^^^^^^^^^^^^^^
+
+/polymer.html_script_31.js:156: WARNING - Property querySelector never defined on this of type DomIf
+          let template = this.querySelector('template');
+                         ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_31.js:160: WARNING - Property querySelector never defined on $jscomp$this of type DomIf
+              if (this.querySelector('template')) {
+                  ^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_31.js:167: WARNING - Invalid type for parameter 1 of function observer.observe.
+Expected : Node|null
+Found    : DomIf
+
+            observer.observe(this, {childList: true});
+                             ^^^^
+
+/polymer.html_script_31.js:170: WARNING - Cannot add property __ctor to a struct instance after it is constructed.
+          this.__ctor = Polymer.Templatize.templatize(template, this, {
+          ^^^^^^^^^^^
+
+/polymer.html_script_31.js:175: WARNING - Dangerous use of the global THIS object
+              if (this.__instance) {
+                  ^^^^
+
+/polymer.html_script_31.js:176: WARNING - Dangerous use of the global THIS object
+                if (this.if) {
+                    ^^^^
+
+/polymer.html_script_31.js:177: WARNING - Dangerous use of the global THIS object
+                  this.__instance.forwardHostProp(prop, value);
+                  ^^^^
+
+/polymer.html_script_31.js:183: WARNING - Dangerous use of the global THIS object
+                  this.__invalidProps = this.__invalidProps || Object.create(null);
+                  ^^^^
+
+/polymer.html_script_31.js:183: WARNING - Dangerous use of the global THIS object
+                  this.__invalidProps = this.__invalidProps || Object.create(null);
+                                        ^^^^
+
+/polymer.html_script_31.js:184: WARNING - Dangerous use of the global THIS object
+                  this.__invalidProps[Polymer.Path.root(prop)] = true;
+                  ^^^^
+
+/polymer.html_script_31.js:198: WARNING - Property previousSibling never defined on this of type DomIf{__ctor:truthy=, __instance:{children:?} (loose)}
+            let lastChild = this.previousSibling;
+                            ^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_31.js:214: WARNING - Property __dataHost never defined on this of type DomIf{__instance:{_setPendingProperty:LOOSE_TOP_FUNCTION} (loose)}
+          this.__instance._setPendingProperty(prop, this.__dataHost[prop]);
+                                                    ^^^^^^^^^^^^^^^
+
+/polymer.html_script_31.js:237: WARNING - Property if never defined on this of type DomIf
+      let hidden = this.__hideTemplateChildren__ || !this.if;
+                                                     ^^^^^^^
+
+/polymer.html_script_31.js:245: WARNING - Invalid type for parameter 2 of function customElements.define.
+Expected : function(new:HTMLElement):?
+Found    : DomIf<|function(new:DomIf):undefined|>
+
+  customElements.define(DomIf.is, DomIf);
+                                  ^^^^^
+
+/polymer.html_script_32.js:86: WARNING - ArraySelectorMixin extends non-object type ?.
+
+      constructor() {
+      ^^^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:143: WARNING - Property items never defined on this of type ArraySelectorMixin
+            if (selected.has(this.items[idx])) {
+                             ^^^^^^^^^^
+
+/polymer.html_script_32.js:144: WARNING - Property items never defined on this of type ArraySelectorMixin
+              selected.set(this.items[idx], idx);
+                           ^^^^^^^^^^
+
+/polymer.html_script_32.js:155: WARNING - Property splice never defined on $jscomp$this of type ArraySelectorMixin{multi:truthy}
+              this.splice('selected', sidx, 1);
+              ^^^^^^^^^^^
+
+/polymer.html_script_32.js:157: WARNING - Cannot add property selected to a struct instance after it is constructed.
+              this.selected = this.selectedItem = null;
+              ^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:157: WARNING - Cannot add property selectedItem to a struct instance after it is constructed.
+              this.selected = this.selectedItem = null;
+                              ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:167: WARNING - Cannot add property __dataLinkedPaths to a struct instance after it is constructed.
+        this.__dataLinkedPaths = {};
+        ^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:172: WARNING - Property linkPaths never defined on $jscomp$this of type ArraySelectorMixin
+              this.linkPaths('items.' + idx, 'selected.' + sidx++);
+              ^^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:177: WARNING - Property linkPaths never defined on $jscomp$this of type ArraySelectorMixin
+            this.linkPaths('selected', 'items.' + idx);
+            ^^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:178: WARNING - Property linkPaths never defined on $jscomp$this of type ArraySelectorMixin
+            this.linkPaths('selectedItem', 'items.' + idx);
+            ^^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:189: WARNING - Cannot add property __dataLinkedPaths to a struct instance after it is constructed.
+        this.__dataLinkedPaths = {};
+        ^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:196: WARNING - Cannot add property selected to a struct instance after it is constructed.
+        this.selected = this.multi ? [] : null
+        ^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:197: WARNING - Cannot add property selectedItem to a struct instance after it is constructed.
+        this.selectedItem = null;
+        ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:217: WARNING - Property items never defined on this of type ArraySelectorMixin
+        return this.isSelected(this.items[idx]);
+                               ^^^^^^^^^^
+
+/polymer.html_script_32.js:233: WARNING - Property __dataLinkedPaths never defined on this of type ArraySelectorMixin
+        let selected = this.__dataLinkedPaths['items.' + idx];
+                       ^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:254: WARNING - Property splice never defined on this
+            this.splice('selected', sidx, 1);
+            ^^^^^^^^^^^
+
+/polymer.html_script_32.js:256: WARNING - Cannot add property selected to a struct instance after it is constructed.
+            this.selected = this.selectedItem = null;
+            ^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:256: WARNING - Cannot add property selectedItem to a struct instance after it is constructed.
+            this.selected = this.selectedItem = null;
+                            ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:267: WARNING - Property items never defined on this of type ArraySelectorMixin
+        this.deselect(this.items[idx]);
+                      ^^^^^^^^^^
+
+/polymer.html_script_32.js:277: WARNING - Property items never defined on this of type ArraySelectorMixin
+        this.selectIndex(this.items.indexOf(item));
+                         ^^^^^^^^^^
+
+/polymer.html_script_32.js:287: WARNING - Property items never defined on this of type ArraySelectorMixin
+        let item = this.items[idx];
+                   ^^^^^^^^^^
+
+/polymer.html_script_32.js:295: WARNING - Property push never defined on this of type ArraySelectorMixin{__selectedMap:{set:LOOSE_TOP_FUNCTION} (loose), multi:truthy}
+            this.push('selected', item);
+            ^^^^^^^^^
+
+/polymer.html_script_32.js:297: WARNING - Cannot add property selected to a struct instance after it is constructed.
+            this.selected = this.selectedItem = item;
+            ^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:297: WARNING - Cannot add property selectedItem to a struct instance after it is constructed.
+            this.selected = this.selectedItem = item;
+                            ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_32.js:391: WARNING - Invalid type for parameter 2 of function customElements.define.
+Expected : function(new:HTMLElement):?
+Found    : ArraySelector<|function(new:ArraySelector,...?):undefined|>
+
+  customElements.define(ArraySelector.is, ArraySelector);
+                                          ^^^^^^^^^^^^^
+
+/polymer.html_script_33.js:47: WARNING - Returned type does not match declared return type.
+Expected : HTMLStyleElement|null
+Found    : undefined
+
+        return;
+        ^^^^^^^
+
+/polymer.html_script_33.js:55: WARNING - Returned type does not match declared return type.
+Expected : HTMLStyleElement|null
+Found    : Element
+
+      return this._style;
+      ^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_34.js:132: WARNING - Dangerous use of the global THIS object
+      return mutablePropertyChange(this, property, value, old, this.mutableData);
+                                                               ^^^^
+
+/polymer.html_script_4.js:37: WARNING - Dangerous use of the global THIS object
+        cssText += this.cssFromModule(modules[i]);
+                   ^^^^
+
+/polymer.html_script_4.js:61: WARNING - Dangerous use of the global THIS object
+          cssText += this.cssFromTemplate(t, m.assetpath);
+                     ^^^^
+
+/polymer.html_script_4.js:64: WARNING - Dangerous use of the global THIS object
+        cssText += this.cssFromModuleImports(moduleId);
+                   ^^^^
+
+/polymer.html_script_4.js:93: WARNING - Dangerous use of the global THIS object
+          cssText += this.cssFromModules(include);
+                     ^^^^
+
+/polymer.html_script_5.js:87: WARNING - Property importForElement never defined on HTMLImports of type HTMLImports
+          HTMLImports.importForElement(this) || document : this.ownerDocument;
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_5.js:90: WARNING - Cannot add property __assetpath to a struct instance after it is constructed.
+        this.__assetpath = Polymer.ResolveUrl.pathFromUrl(url);
+        ^^^^^^^^^^^^^^^^
+
+/polymer.html_script_6.js:121: WARNING - Dangerous use of the global THIS object
+             this.isAncestor(base, path) ||
+             ^^^^
+
+/polymer.html_script_6.js:122: WARNING - Dangerous use of the global THIS object
+             this.isDescendant(base, path);
+             ^^^^
+
+/polymer.html_script_6.js:172: WARNING - Dangerous use of the global THIS object
+        return this.normalize(path).split('.');
+               ^^^^
+
+/polymer.html_script_6.js:191: WARNING - Dangerous use of the global THIS object
+      let parts = this.split(path);
+                  ^^^^
+
+/polymer.html_script_6.js:218: WARNING - Dangerous use of the global THIS object
+      let parts = this.split(path);
+                  ^^^^
+
+/polymer.html_script_8.js:103: WARNING - PropertyAccessors extends non-object type ?.
+
+      constructor() {
+      ^^^^^^^^^^^^^^^
+
+/polymer.html_script_8.js:110: WARNING - Function this._attributeToProperty: called with 2 argument(s). Function requires at least 3 argument(s) and at most 3.
+          this._attributeToProperty(name, value);
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_8.js:190: WARNING - Property hasAttribute never defined on this of type PropertyAccessors
+        if (!this.hasAttribute(attribute)) {
+             ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_8.js:191: WARNING - Invalid type for parameter 1 of function this._valueToNodeAttribute.
+Expected : Element|null
+Found    : PropertyAccessors
+
+          this._valueToNodeAttribute(this, value, attribute);
+                                     ^^^^
+
+/polymer.html_script_8.js:223: WARNING - Invalid type for parameter 1 of function this._valueToNodeAttribute.
+Expected : Element|null
+Found    : PropertyAccessors{__serializing:boolean}
+
+        this._valueToNodeAttribute(this, value,
+                                   ^^^^
+
+/polymer.html_script_8.js:373: WARNING - Dangerous use of the global THIS object
+              return this.__data[property];
+                     ^^^^
+
+/polymer.html_script_8.js:376: WARNING - Dangerous use of the global THIS object
+              this._setProperty(property, value);
+              ^^^^
+
+/polymer.html_script_8.js:417: WARNING - Missing return statement. Function expected to return boolean.
+      _setPendingProperty(property, value) {
+      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_9.js:106: WARNING - TemplateStamp extends non-object type ?.
+
+    class TemplateStamp extends superClass {
+    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_9.js:110: WARNING - Cannot add property $ to a struct instance after it is constructed.
+        this.$ = null;
+        ^^^^^^
+
+/polymer.html_script_9.js:215: WARNING - Property hasAttribute never defined on node of type Node
+        if (node.localName == 'template' && !node.hasAttribute('preserve-content')) {
+                                             ^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_9.js:258: WARNING - Invalid type for parameter 1 of function root.removeChild.
+Expected : Node|null
+Found    : {nextSibling:?, nodeType:number, textContent:number|string} (loose)
+
+              root.removeChild(n);
+                               ^
+
+/polymer.html_script_9.js:315: WARNING - Invalid type for parameter 1 of function Array.from.
+Expected : IArrayLike<Attr>|Iterable<Attr>|string
+Found    : NamedNodeMap<Attr>|null
+More details:
+The found type is a union that includes an unexpected type: null
+        let attrs = Array.from(node.attributes);
+                               ^^^^^^^^^^^^^^^
+
+/polymer.html_script_9.js:337: WARNING - Missing return statement. Function expected to return boolean.
+      static _parseTemplateNodeAttribute(node, templateInfo, nodeInfo, name, value) {
+      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_9.js:340: WARNING - Property removeAttribute never defined on node of type Node
+          node.removeAttribute(name);
+          ^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_9.js:366: WARNING - Property __templateInfo never defined on template of type HTMLTemplateElement
+        let templateInfo = template.__templateInfo;
+                           ^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_9.js:396: WARNING - Property decorate never defined on HTMLTemplateElement of type HTMLTemplateElement<|function(new:HTMLTemplateElement):?|>
+          HTMLTemplateElement.decorate(template);
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+/polymer.html_script_9.js:412: WARNING - Returned type does not match declared return type.
+Expected : DocumentFragment|null
+Found    : Node{$:Object{}, __noInsertionPoint:boolean, nodeList:Array<?>}
+
+        return dom;
+        ^^^^^^^^^^^
+
+externs/closure-types.js:217: WARNING - Invalid redeclaration of property _setPendingProperty.
+inherited type  : function(this:Polymer_PropertyAccessors,string,*):boolean
+overriding type : function(this:Polymer_PropertyEffects,*,*,*):?
+
+Polymer_PropertyEffects.prototype._setPendingProperty = function(property, value, shouldNotify){};
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+externs/closure-types.js:378: WARNING - property connectedCallback not defined on any supertype of Polymer_ElementMixin
+Polymer_ElementMixin.prototype.connectedCallback = function(){};
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+externs/closure-types.js:382: WARNING - property disconnectedCallback not defined on any supertype of Polymer_ElementMixin
+Polymer_ElementMixin.prototype.disconnectedCallback = function(){};
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+externs/closure-types.js:402: WARNING - property attributeChangedCallback not defined on any supertype of Polymer_ElementMixin
+Polymer_ElementMixin.prototype.attributeChangedCallback = function(name, old, value){};
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+externs/closure-types.js:717: WARNING - property mutableData on interface Polymer_OptionalMutableData is not implemented by type OptionalMutableData
+Polymer_OptionalMutableData.prototype.mutableData;
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+externs/closure-types.js:731: WARNING - property items on interface Polymer_ArraySelectorMixin is not implemented by type ArraySelectorMixin
+Polymer_ArraySelectorMixin.prototype.items;
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+externs/closure-types.js:734: WARNING - property multi on interface Polymer_ArraySelectorMixin is not implemented by type ArraySelectorMixin
+Polymer_ArraySelectorMixin.prototype.multi;
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+externs/closure-types.js:737: WARNING - property selected on interface Polymer_ArraySelectorMixin is not implemented by type ArraySelectorMixin
+Polymer_ArraySelectorMixin.prototype.selected;
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+externs/closure-types.js:740: WARNING - property selectedItem on interface Polymer_ArraySelectorMixin is not implemented by type ArraySelectorMixin
+Polymer_ArraySelectorMixin.prototype.selectedItem;
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+externs/closure-types.js:743: WARNING - property toggle on interface Polymer_ArraySelectorMixin is not implemented by type ArraySelectorMixin
+Polymer_ArraySelectorMixin.prototype.toggle;
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+0 error(s), 498 warning(s), 70.9% typed