Patches to support Dart VM patch files in dart2js.

runtime/lib/internal_patch.dart

Index: runtime/lib/internal_patch.dart
diff --git a/runtime/lib/internal_patch.dart b/runtime/lib/internal_patch.dart
index 30898306abcfbc1189e3e9947059088b42914667..d6651c48551d99be77b5a474cf6537ca7de733d6 100644
--- a/runtime/lib/internal_patch.dart
+++ b/runtime/lib/internal_patch.dart
@@ -8,34 +8,4 @@ patch List makeListFixedLength(List growableList)
 patch List makeFixedListUnmodifiable(List fixedLengthList)
     native "Internal_makeFixedListUnmodifiable";
 
-class VMLibraryHooks {
-  // Example: "dart:isolate _Timer._factory"
-  static var timerFactory;
-
-  // Example: "dart:io _EventHandler._sendData"
-  static var eventHandlerSendData;
-
-  // A nullary closure that answers the current clock value in milliseconds.
-  // Example: "dart:io _EventHandler._timerMillisecondClock"
-  static var timerMillisecondClock;
-
-  // Implementation of Resource.readAsBytes.
-  static var resourceReadAsBytes;
-
-  // Implementation of package root/map provision.
-  static var packageRootString;
-  static var packageConfigString;
-  static var packageRootUriFuture;
-  static var packageConfigUriFuture;
-  static var resolvePackageUriFuture;
-
-  static var platformScript;
-}
-
-patch class CodeUnits {
-  static final int cid = ClassID.getID(new CodeUnits(""));
-}
-
-final bool is64Bit = _inquireIs64Bit();
-
 bool _inquireIs64Bit() native "Internal_inquireIs64Bit";