Make sure transitioned arrays efficiently call builtin Array functions

src/arm/lithium-codegen-arm.h

Index: src/arm/lithium-codegen-arm.h
diff --git a/src/arm/lithium-codegen-arm.h b/src/arm/lithium-codegen-arm.h
index e6626481b3affe25813c245b593590f1dfbfca7a..4d6a0c9c0020f65629e3f651baecf219b13f39b3 100644
--- a/src/arm/lithium-codegen-arm.h
+++ b/src/arm/lithium-codegen-arm.h
@@ -1,4 +1,4 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -119,6 +119,9 @@ class LCodeGen BASE_EMBEDDED {
   void DoDeferredInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr,
                                        Label* map_check);
 
+  void DoCheckMapCommon(Register reg, Register scratch, Handle<Map> map,
+                        CompareMapMode mode, LEnvironment* env);
+
   // Parallel move support.
   void DoParallelMove(LParallelMove* move);
   void DoGap(LGap* instr);