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

src/compiler/ast-graph-builder.cc

 // Copyright 2014 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.
 
 #include "src/compiler/ast-graph-builder.h"
 
 #include "src/compiler.h"
 #include "src/compiler/ast-loop-assignment-analyzer.h"
 #include "src/compiler/control-builders.h"
 #include "src/compiler/js-type-feedback.h"
@@ skipping 3441 matching lines @@
                            TypeFeedbackId id) {
   if (js_type_feedback) {
     js_type_feedback->Record(node, id);
   }
   return node;
 }
 
 
 Node* AstGraphBuilder::BuildKeyedLoad(Node* object, Node* key,
                                       const ResolvedFeedbackSlot& feedback) {
-  const Operator* op = javascript()->LoadProperty(feedback, language_mode());
+  const Operator* op = javascript()->LoadProperty(feedback);
   return Record(js_type_feedback_,
                 NewNode(op, object, key, GetFeedbackVector()), feedback.slot());
 }
 
 
 Node* AstGraphBuilder::BuildNamedLoad(Node* object, Handle<Name> name,
                                       const ResolvedFeedbackSlot& feedback,
                                       ContextualMode mode) {
-  const Operator* op = javascript()->LoadNamed(MakeUnique(name), feedback,
-                                               language_mode(), mode);
+  const Operator* op =
+      javascript()->LoadNamed(MakeUnique(name), feedback, mode);
   return Record(js_type_feedback_, NewNode(op, object, GetFeedbackVector()),
                 feedback.slot());
 }
 
 
 Node* AstGraphBuilder::BuildKeyedStore(Node* object, Node* key, Node* value,
                                        TypeFeedbackId id) {
   const Operator* op = javascript()->StoreProperty(language_mode());
   return Record(js_type_feedback_, NewNode(op, object, key, value), id);
 }
 
 
 Node* AstGraphBuilder::BuildNamedStore(Node* object, Handle<Name> name,
                                        Node* value, TypeFeedbackId id) {
   const Operator* op =
       javascript()->StoreNamed(language_mode(), MakeUnique(name));
   return Record(js_type_feedback_, NewNode(op, object, value), id);
 }
 
 
 Node* AstGraphBuilder::BuildNamedSuperLoad(
     Node* receiver, Node* home_object, Handle<Name> name,
     const ResolvedFeedbackSlot& feedback) {
   Node* name_node = jsgraph()->Constant(name);
-  Node* language = jsgraph()->Constant(language_mode());
-  const Operator* op = javascript()->CallRuntime(Runtime::kLoadFromSuper, 4);
-  Node* value = NewNode(op, receiver, home_object, name_node, language);
+  const Operator* op = javascript()->CallRuntime(Runtime::kLoadFromSuper, 3);
+  Node* value = NewNode(op, receiver, home_object, name_node);
   return Record(js_type_feedback_, value, feedback.slot());
 }
 
 
 Node* AstGraphBuilder::BuildKeyedSuperLoad(
     Node* receiver, Node* home_object, Node* key,
     const ResolvedFeedbackSlot& feedback) {
-  Node* language = jsgraph()->Constant(language_mode());
   const Operator* op =
-      javascript()->CallRuntime(Runtime::kLoadKeyedFromSuper, 4);
-  Node* value = NewNode(op, receiver, home_object, key, language);
+      javascript()->CallRuntime(Runtime::kLoadKeyedFromSuper, 3);
+  Node* value = NewNode(op, receiver, home_object, key);
   return Record(js_type_feedback_, value, feedback.slot());
 }
 
 
 Node* AstGraphBuilder::BuildKeyedSuperStore(Node* receiver, Node* home_object,
                                             Node* key, Node* value,
                                             TypeFeedbackId id) {
   Runtime::FunctionId function_id = is_strict(language_mode())
                                         ? Runtime::kStoreKeyedToSuper_Strict
                                         : Runtime::kStoreKeyedToSuper_Sloppy;
@@ skipping 557 matching lines @@
     // Phi does not exist yet, introduce one.
     value = NewPhi(inputs, value, control);
     value->ReplaceInput(inputs - 1, other);
   }
   return value;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8