Wrapperless dart:html and friends

lib/runtime/dart/_internal.js

 dart_library.library('dart/_internal', null, /* Imports */[
   'dart/_runtime',
   'dart/core',
   'dart/collection'
 ], /* Lazy imports */[
   'dart/math',
   'dart/_interceptors',
   'dart/_js_primitives'
 ], function(exports, dart, core, collection, math, _interceptors, _js_primitives) {
   'use strict';
@@ skipping 1811 matching lines @@
         containsValue: [core.bool, [core.Object]],
         containsKey: [core.bool, [core.Object]],
         forEach: [dart.void, [dart.functionType(dart.void, [core.int, E])]],
         set: [dart.void, [core.int, E]],
         putIfAbsent: [E, [core.int, dart.functionType(E, [])]],
         remove: [E, [core.Object]],
         clear: [dart.void, []],
         addAll: [dart.void, [core.Map$(core.int, E)]]
       })
     });
+    dart.defineExtensionMembers(ListMapView, [
+      'get',
+      'containsValue',
+      'containsKey',
+      'forEach',
+      'set',
+      'putIfAbsent',
+      'remove',
+      'clear',
+      'addAll',
+      'length',
+      'values',
+      'keys',
+      'isEmpty',
+      'isNotEmpty'
+    ]);
     return ListMapView;
   });
   let ListMapView = ListMapView$();
   const ReversedListIterable$ = dart.generic(function(E) {
     class ReversedListIterable extends ListIterable$(E) {
       ReversedListIterable(source) {
         this[_source] = source;
         super.ListIterable();
       }
       get length() {
@@ skipping 502 matching lines @@
   exports.ReversedListIterable = ReversedListIterable;
   exports.UnmodifiableListError = UnmodifiableListError;
   exports.NonGrowableListError = NonGrowableListError;
   exports.makeListFixedLength = makeListFixedLength;
   exports.Lists = Lists;
   exports.printToConsole = printToConsole;
   exports.Sort = Sort;
   exports.Symbol = Symbol;
   exports.POWERS_OF_TEN = POWERS_OF_TEN;
 });