Revert of [strong] Implement strong mode restrictions on property access

src/hydrogen-instructions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HYDROGEN_INSTRUCTIONS_H_
 #define V8_HYDROGEN_INSTRUCTIONS_H_
 
 #include <cstring>
 #include <iosfwd>
 
@@ skipping 6374 matching lines @@
 
   bool IsDeletable() const override { return true; }
 
   HObjectAccess access_;
   const UniqueSet<Map>* maps_;
 };
 
 
 class HLoadNamedGeneric final : public HTemplateInstruction<2> {
  public:
-  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P4(HLoadNamedGeneric, HValue*,
-                                              Handle<Object>, LanguageMode,
-                                              InlineCacheState);
+  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(HLoadNamedGeneric, HValue*,
+                                              Handle<Object>, InlineCacheState);
 
   HValue* context() const { return OperandAt(0); }
   HValue* object() const { return OperandAt(1); }
   Handle<Object> name() const { return name_; }
 
   InlineCacheState initialization_state() const {
     return initialization_state_;
   }
   FeedbackVectorICSlot slot() const { return slot_; }
   Handle<TypeFeedbackVector> feedback_vector() const {
     return feedback_vector_;
   }
   bool HasVectorAndSlot() const { return true; }
   void SetVectorAndSlot(Handle<TypeFeedbackVector> vector,
                         FeedbackVectorICSlot slot) {
     feedback_vector_ = vector;
     slot_ = slot;
   }
 
   Representation RequiredInputRepresentation(int index) override {
     return Representation::Tagged();
   }
 
   std::ostream& PrintDataTo(std::ostream& os) const override;  // NOLINT
 
   DECLARE_CONCRETE_INSTRUCTION(LoadNamedGeneric)
 
-  LanguageMode language_mode() const { return language_mode_; }
-
  private:
   HLoadNamedGeneric(HValue* context, HValue* object, Handle<Object> name,
-                    LanguageMode language_mode,
                     InlineCacheState initialization_state)
       : name_(name),
         slot_(FeedbackVectorICSlot::Invalid()),
-        language_mode_(language_mode),
         initialization_state_(initialization_state) {
     SetOperandAt(0, context);
     SetOperandAt(1, object);
     set_representation(Representation::Tagged());
     SetAllSideEffects();
   }
 
   Handle<Object> name_;
   Handle<TypeFeedbackVector> feedback_vector_;
   FeedbackVectorICSlot slot_;
-  LanguageMode language_mode_;
   InlineCacheState initialization_state_;
 };
 
 
 class HLoadFunctionPrototype final : public HUnaryOperation {
  public:
   DECLARE_INSTRUCTION_FACTORY_P1(HLoadFunctionPrototype, HValue*);
 
   HValue* function() { return OperandAt(0); }
 
@@ skipping 219 matching lines @@
     {};  // NOLINT
   class IsDehoistedField:
     public BitField<bool, kStartIsDehoisted, kBitsForIsDehoisted>
     {};  // NOLINT
   uint32_t bit_field_;
 };
 
 
 class HLoadKeyedGeneric final : public HTemplateInstruction<3> {
  public:
-  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P4(HLoadKeyedGeneric, HValue*,
-                                              HValue*, LanguageMode,
-                                              InlineCacheState);
+  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(HLoadKeyedGeneric, HValue*,
+                                              HValue*, InlineCacheState);
   HValue* object() const { return OperandAt(0); }
   HValue* key() const { return OperandAt(1); }
   HValue* context() const { return OperandAt(2); }
   InlineCacheState initialization_state() const {
     return initialization_state_;
   }
   FeedbackVectorICSlot slot() const { return slot_; }
   Handle<TypeFeedbackVector> feedback_vector() const {
     return feedback_vector_;
   }
@@ skipping 11 matching lines @@
 
   Representation RequiredInputRepresentation(int index) override {
     // tagged[tagged]
     return Representation::Tagged();
   }
 
   HValue* Canonicalize() override;
 
   DECLARE_CONCRETE_INSTRUCTION(LoadKeyedGeneric)
 
-  LanguageMode language_mode() const { return language_mode_; }
-
  private:
   HLoadKeyedGeneric(HValue* context, HValue* obj, HValue* key,
-                    LanguageMode language_mode,
                     InlineCacheState initialization_state)
       : slot_(FeedbackVectorICSlot::Invalid()),
-        initialization_state_(initialization_state),
-        language_mode_(language_mode) {
+        initialization_state_(initialization_state) {
     set_representation(Representation::Tagged());
     SetOperandAt(0, obj);
     SetOperandAt(1, key);
     SetOperandAt(2, context);
     SetAllSideEffects();
   }
 
   Handle<TypeFeedbackVector> feedback_vector_;
   FeedbackVectorICSlot slot_;
   InlineCacheState initialization_state_;
-  LanguageMode language_mode_;
 };
 
 
 // Indicates whether the store is a store to an entry that was previously
 // initialized or not.
 enum StoreFieldOrKeyedMode {
   // The entry could be either previously initialized or not.
   INITIALIZING_STORE,
   // At the time of this store it is guaranteed that the entry is already
   // initialized.
@@ skipping 1161 matching lines @@
 };
 
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_