Implement tracking and optimizations of packed arrays

src/ia32/macro-assembler-ia32.h

Index: src/ia32/macro-assembler-ia32.h
diff --git a/src/ia32/macro-assembler-ia32.h b/src/ia32/macro-assembler-ia32.h
index 66d1ce7d3851d246d4417b2f92654430f7a417f4..7d7ad01dabf2de98d0d79554d0e4f85ab94351cb 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -235,7 +235,8 @@ 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);
 
   // Load the global function with the given index.
   void LoadGlobalFunction(int index, Register function);