Rollback of r15097, r15087 in trunk branch.

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 36807755341ca40fa245546f7348f9dc4d3dc41f..a6f0521d5dbdeacccf21b54ec8aa4ebdd405ffea 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -260,7 +260,6 @@ class HLoopInformation: public ZoneObject {
   HStackCheck* stack_check_;
 };
 
-
 class BoundsCheckTable;
 class HGraph: public ZoneObject {
  public:
@@ -412,10 +411,6 @@ class HGraph: public ZoneObject {
     depends_on_empty_array_proto_elements_ = true;
   }
 
-  bool depends_on_empty_array_proto_elements() {
-    return depends_on_empty_array_proto_elements_;
-  }
-
   void RecordUint32Instruction(HInstruction* instr) {
     if (uint32_instructions_ == NULL) {
       uint32_instructions_ = new(zone()) ZoneList<HInstruction*>(4, zone());
@@ -881,11 +876,6 @@ class FunctionState {
   HEnterInlined* entry() { return entry_; }
   void set_entry(HEnterInlined* entry) { entry_ = entry; }
 
-  HArgumentsObject* arguments_object() { return arguments_object_; }
-  void set_arguments_object(HArgumentsObject* arguments_object) {
-    arguments_object_ = arguments_object;
-  }
-
   HArgumentsElements* arguments_elements() { return arguments_elements_; }
   void set_arguments_elements(HArgumentsElements* arguments_elements) {
     arguments_elements_ = arguments_elements;
@@ -919,7 +909,6 @@ class FunctionState {
   // entry.
   HEnterInlined* entry_;
 
-  HArgumentsObject* arguments_object_;
   HArgumentsElements* arguments_elements_;
 
   FunctionState* outer_;