Patches to support Dart VM patch files in dart2js.

pkg/compiler/lib/src/tokens/keyword.dart

Index: pkg/compiler/lib/src/tokens/keyword.dart
diff --git a/pkg/compiler/lib/src/tokens/keyword.dart b/pkg/compiler/lib/src/tokens/keyword.dart
index ad22ee6d8f883eba93f0394aee2293673ee4f968..89b25bb8990b1f7ea5b6579d1b30bdbe5f953685 100644
--- a/pkg/compiler/lib/src/tokens/keyword.dart
+++ b/pkg/compiler/lib/src/tokens/keyword.dart
@@ -68,17 +68,18 @@ class Keyword {
     const Keyword("static", isBuiltIn: true),
     const Keyword("typedef", isBuiltIn: true),
 
+    const Keyword("async", isPseudo: true),
+    const Keyword("await", isPseudo: true),
+    const Keyword("deferred", isPseudo: true),
     const Keyword("hide", isPseudo: true),
     const Keyword("native", isPseudo: true),
     const Keyword("of", isPseudo: true),
     const Keyword("on", isPseudo: true),
+    const Keyword("patch", isPseudo: true),
     const Keyword("show", isPseudo: true),
     const Keyword("source", isPseudo: true),
-    const Keyword("deferred", isPseudo: true),
-    const Keyword("async", isPseudo: true),
     const Keyword("sync", isPseudo: true),
-    const Keyword("await", isPseudo: true),
-    const Keyword("yield", isPseudo: true)
+    const Keyword("yield", isPseudo: true),
   ];
 
   final String syntax;