Make the strict-mode calling convention for contextual calls the default one.

src/hydrogen-instructions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1975 matching lines @@
 
 class HEnterInlined V8_FINAL : public HTemplateInstruction<0> {
  public:
   static HEnterInlined* New(Zone* zone,
                             HValue* context,
                             Handle<JSFunction> closure,
                             int arguments_count,
                             FunctionLiteral* function,
                             InliningKind inlining_kind,
                             Variable* arguments_var,
-                            HArgumentsObject* arguments_object,
-                            bool undefined_receiver) {
+                            HArgumentsObject* arguments_object) {
     return new(zone) HEnterInlined(closure, arguments_count, function,
                                    inlining_kind, arguments_var,
-                                   arguments_object, undefined_receiver, zone);
+                                   arguments_object, zone);
   }
 
   void RegisterReturnTarget(HBasicBlock* return_target, Zone* zone);
   ZoneList<HBasicBlock*>* return_targets() { return &return_targets_; }
 
   virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE;
 
   Handle<JSFunction> closure() const { return closure_; }
   int arguments_count() const { return arguments_count_; }
   bool arguments_pushed() const { return arguments_pushed_; }
   void set_arguments_pushed() { arguments_pushed_ = true; }
   FunctionLiteral* function() const { return function_; }
   InliningKind inlining_kind() const { return inlining_kind_; }
-  bool undefined_receiver() const { return undefined_receiver_; }
 
   virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
     return Representation::None();
   }
 
   Variable* arguments_var() { return arguments_var_; }
   HArgumentsObject* arguments_object() { return arguments_object_; }
 
   DECLARE_CONCRETE_INSTRUCTION(EnterInlined)
 
  private:
   HEnterInlined(Handle<JSFunction> closure,
                 int arguments_count,
                 FunctionLiteral* function,
                 InliningKind inlining_kind,
                 Variable* arguments_var,
                 HArgumentsObject* arguments_object,
-                bool undefined_receiver,
                 Zone* zone)
       : closure_(closure),
         arguments_count_(arguments_count),
         arguments_pushed_(false),
         function_(function),
         inlining_kind_(inlining_kind),
         arguments_var_(arguments_var),
         arguments_object_(arguments_object),
-        undefined_receiver_(undefined_receiver),
         return_targets_(2, zone) {
   }
 
   Handle<JSFunction> closure_;
   int arguments_count_;
   bool arguments_pushed_;
   FunctionLiteral* function_;
   InliningKind inlining_kind_;
   Variable* arguments_var_;
   HArgumentsObject* arguments_object_;
-  bool undefined_receiver_;
   ZoneList<HBasicBlock*> return_targets_;
 };
 
 
 class HLeaveInlined V8_FINAL : public HTemplateInstruction<0> {
  public:
   HLeaveInlined(HEnterInlined* entry,
                 int drop_count)
       : entry_(entry),
         drop_count_(drop_count) { }
@@ skipping 5522 matching lines @@
   virtual bool IsDeletable() const V8_OVERRIDE { return true; }
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_