implement tear offs

lib/runtime/dart/core.js

 var core;
 (function(exports) {
   'use strict';
   class Object {
     constructor() {
       let name = this.constructor.name;
       let init = this[name];
       let result = void 0;
       if (init)
         result = init.apply(this, arguments);
@@ skipping 1393 matching lines @@
       return (dart.notNull(this.elapsedTicks) * 1000 / dart.notNull(this.frequency)).truncate();
     }
     get isRunning() {
       return this[_start] != null && this[_stop] == null;
     }
     static [_initTicker]() {
       _js_helper.Primitives.initTicker();
       Stopwatch[_frequency] = _js_helper.Primitives.timerFrequency;
     }
     static [_now]() {
-      return dart.as(dart.dsend(_js_helper.Primitives, 'timerTicks'), int);
+      return dart.as(dart.dcall(_js_helper.Primitives.timerTicks), int);
     }
   }
   Stopwatch._frequency = null;
   let _stringFromIterable = dart.JsSymbol('_stringFromIterable');
   let $sublist = dart.JsSymbol('$sublist');
   class String extends Object {
     fromCharCodes(charCodes, start, end) {
       if (start === void 0)
         start = 0;
       if (end === void 0)
@@ skipping 788 matching lines @@
       if (fragment != null) {
         fragment = Uri[_makeFragment](fragment, 0, fragment.length);
       } else if (this.hasFragment) {
         fragment = this.fragment;
       }
       return new Uri[_internal](scheme, userInfo, host, port, path, query, fragment);
     }
     get pathSegments() {
       if (this[_pathSegments] == null) {
         let pathToSplit = !dart.notNull(this.path.isEmpty) && this.path.codeUnitAt(0) == Uri[_SLASH] ? this.path.substring(1) : this.path;
-        this[_pathSegments] = new collection.UnmodifiableListView(pathToSplit == "" ? /* Unimplemented const */dart.setType([], List$(String)) : pathToSplit.split("/")[exports.$map](Uri.decodeComponent)[exports.$toList]({growable: false}));
+        this[_pathSegments] = new collection.UnmodifiableListView(pathToSplit == "" ? /* Unimplemented const */dart.setType([], List$(String)) : pathToSplit.split("/")[exports.$map](dart.bind(Uri, 'decodeComponent'))[exports.$toList]({growable: false}));
       }
       return this[_pathSegments];
     }
     get queryParameters() {
       if (this[_queryParameters] == null) {
         this[_queryParameters] = new (collection.UnmodifiableMapView$(String, String))(Uri.splitQueryString(this.query));
       }
       return this[_queryParameters];
     }
     static [_makePort](port, scheme) {
@@ skipping 917 matching lines @@
   exports.Symbol = Symbol;
   exports.Type = Type;
   exports.$forEach = $forEach;
   exports.$map = $map;
   exports.$toList = $toList;
   exports.$isEmpty = $isEmpty;
   exports.$removeLast = $removeLast;
   exports.$fold = $fold;
   exports.Uri = Uri;
 })(core || (core = {}));