Implement tracking and optimizations of packed arrays

src/arm/macro-assembler-arm.h

Index: src/arm/macro-assembler-arm.h
diff --git a/src/arm/macro-assembler-arm.h b/src/arm/macro-assembler-arm.h
index 360f4c128c22a2120e19aed1eb53b33632dce2bb..b93aba1f51dd4bc79827b7896840fc045405d98d 100644
--- a/src/arm/macro-assembler-arm.h
+++ b/src/arm/macro-assembler-arm.h
@@ -512,7 +512,8 @@ class MacroAssembler: public Assembler {
   // Load the initial map for new Arrays from a JSFunction.
   void LoadInitialArrayMap(Register function_in,
                            Register scratch,
-                           Register map_out);
+                           Register map_out,
+                           bool can_have_holes);
 
   void LoadGlobalFunction(int index, Register function);
 
@@ -802,9 +803,9 @@ class MacroAssembler: public Assembler {
 
   // Check if a map for a JSObject indicates that the object has fast smi only
   // elements.  Jump to the specified label if it does not.
-  void CheckFastSmiOnlyElements(Register map,
-                                Register scratch,
-                                Label* fail);
+  void CheckFastSmiElements(Register map,
+                            Register scratch,
+                            Label* fail);
 
   // Check to see if maybe_number can be stored as a double in
   // FastDoubleElements. If it can, store it at the index specified by key in