Create and use shared stub for for DictionaryValue-based elements.

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 837c500e9a0b6f1fc38f8da36048ad5e642ee218..dac22731a95b0ccf9d61da88af568aed8745a479 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -352,6 +352,15 @@ class MacroAssembler: public Assembler {
                               Label* miss);
 
 
+  void LoadFromNumberDictionary(Label* miss,
+                                Register elements,
+                                Register key,
+                                Register r0,
+                                Register r1,
+                                Register r2,
+                                Register result);
+
+
   // ---------------------------------------------------------------------------
   // Allocation support