Generate all runtime files from dart.

lib/runtime/dart/html_common.js

 dart_library.library('dart/html_common', null, /* Imports */[
-  "dart/_runtime",
+  'dart/_runtime',
   'dart/_metadata',
   'dart/core',
   'dart/html',
   'dart/typed_data',
   'dart/_js_helper',
   'dart/_native_typed_data',
   'dart/async',
   'dart/collection',
   'dart/_internal'
 ], /* Lazy imports */[
 ], function(exports, dart, _metadata, core, html, typed_data, _js_helper, _native_typed_data, async, collection, _internal) {
   'use strict';
   let dartx = dart.dartx;
-  dart.export_(exports, _metadata);
+  dart.export(exports, _metadata);
   const _validateToken = Symbol('_validateToken');
   class CssClassSetImpl extends core.Object {
     [_validateToken](value) {
       if (dart.notNull(CssClassSetImpl._validTokenRE.hasMatch(value))) return value;
       dart.throw(new core.ArgumentError.value(value, 'value', 'Not a valid class token'));
     }
     toString() {
       return this.readClasses().join(' ');
     }
     toggle(value, shouldAdd) {
@@ skipping 894 matching lines @@
   exports.isJavaScriptArray = isJavaScriptArray;
   exports.isJavaScriptSimpleObject = isJavaScriptSimpleObject;
   exports.isImmutableJavaScriptArray = isImmutableJavaScriptArray;
   exports.isJavaScriptPromise = isJavaScriptPromise;
   exports.convertNativePromiseToDartFuture = convertNativePromiseToDartFuture;
   exports.Device = Device;
   exports.FilteredElementList = FilteredElementList;
   exports.Lists = Lists;
   exports.NodeListWrapper = NodeListWrapper;
 });