Work around runtime engine deficiencies.

sdk/lib/_internal/compiler/implementation/compiler.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dart2js;
 
 /**
  * If true, print a warning for each method that was resolved, but not
  * compiled.
  */
@@ skipping 380 matching lines @@
   LibraryElement isolateLibrary;
   LibraryElement isolateHelperLibrary;
   LibraryElement jsHelperLibrary;
   LibraryElement interceptorsLibrary;
   LibraryElement foreignLibrary;
   LibraryElement mainApp;
 
   /// Initialized when dart:mirrors is loaded.
   LibraryElement mirrorsLibrary;
 
+  /// Initialized when dart:typed_data is loaded.
+  LibraryElement typedDataLibrary;
+
   ClassElement objectClass;
   ClassElement closureClass;
   ClassElement boundClosureClass;
   ClassElement dynamicClass;
   ClassElement boolClass;
   ClassElement numClass;
   ClassElement intClass;
   ClassElement doubleClass;
   ClassElement stringClass;
   ClassElement functionClass;
   ClassElement nullClass;
   ClassElement listClass;
   ClassElement typeClass;
   ClassElement mapClass;
   ClassElement symbolClass;
   ClassElement stackTraceClass;
+  ClassElement typedDataClass;
 
   // Initialized after mirrorSystemClass has been resolved.
   FunctionElement symbolConstructor;
 
   // Initialized when dart:mirrors is loaded.
   ClassElement mirrorSystemClass;
 
   // Initialized when dart:mirrors is loaded.
   ClassElement mirrorsUsedClass;
 
@@ skipping 335 matching lines @@
       withCurrentElement(dynamicClass, () {
         library.addToScope(dynamicClass, this);
       });
     }
     if (uri == new Uri(scheme: 'dart', path: 'mirrors')) {
       mirrorsLibrary = library;
       mirrorSystemClass =
           findRequiredElement(library, const SourceString('MirrorSystem'));
       mirrorsUsedClass =
           findRequiredElement(library, const SourceString('MirrorsUsed'));
+    } else if (uri == new Uri(scheme: 'dart', path: 'typed_data')) {
+      typedDataLibrary = library;
+      typedDataClass =
+          findRequiredElement(library, const SourceString('TypedData'));
     } else if (uri == new Uri(scheme: 'dart', path: '_collection-dev')) {
       symbolImplementationClass =
           findRequiredElement(library, const SourceString('Symbol'));
     } else if (uri == new Uri(scheme: 'dart', path: 'async')) {
       deferredLibraryClass =
           findRequiredElement(library, const SourceString('DeferredLibrary'));
     } else if (isolateHelperLibrary == null
                && (uri == new Uri(scheme: 'dart', path: '_isolate_helper'))) {
       isolateHelperLibrary = scanBuiltinLibrary('_isolate_helper');
     } else if (foreignLibrary == null
@@ skipping 746 matching lines @@
 
   void close() {}
 
   toString() => name;
 
   /// Convenience method for getting an [api.CompilerOutputProvider].
   static NullSink outputProvider(String name, String extension) {
     return new NullSink('$name.$extension');
   }
 }