[for-in] Sanitize for-in optimizations and fix bailout points.

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 ee923679eed4d89a92a822c776138019b7880c9e..4290bc91acf5921d73d2f790b837049b1e065dd0 100644
--- a/src/arm/macro-assembler-arm.h
+++ b/src/arm/macro-assembler-arm.h
@@ -1404,7 +1404,7 @@ class MacroAssembler: public Assembler {
 
   // Expects object in r0 and returns map with validated enum cache
   // in r0.  Assumes that any other register can be used as a scratch.
-  void CheckEnumCache(Register null_value, Label* call_runtime);
+  void CheckEnumCache(Label* call_runtime);
 
   // AllocationMemento support. Arrays may have an associated
   // AllocationMemento object that can be checked for in order to pretransition