[strong] Implement strong property access semantics

src/compiler/ast-graph-builder.cc

Index: src/compiler/ast-graph-builder.cc
diff --git a/src/compiler/ast-graph-builder.cc b/src/compiler/ast-graph-builder.cc
index 631319167bdcb02e5690a6636812f8425690af05..0abc9918df6595454e83f095732f71049ddc4088 100644
--- a/src/compiler/ast-graph-builder.cc
+++ b/src/compiler/ast-graph-builder.cc
@@ -3500,7 +3500,7 @@ static inline Node* Record(JSTypeFeedbackTable* js_type_feedback, Node* node,
 
 Node* AstGraphBuilder::BuildKeyedLoad(Node* object, Node* key,
                                       const VectorSlotPair& feedback) {
-  const Operator* op = javascript()->LoadProperty(feedback);
+  const Operator* op = javascript()->LoadProperty(feedback, language_mode());
   Node* node = NewNode(op, object, key, BuildLoadFeedbackVector());
   return Record(js_type_feedback_, node, feedback.slot());
 }
@@ -3508,7 +3508,8 @@ Node* AstGraphBuilder::BuildKeyedLoad(Node* object, Node* key,
 
 Node* AstGraphBuilder::BuildNamedLoad(Node* object, Handle<Name> name,
                                       const VectorSlotPair& feedback) {
-  const Operator* op = javascript()->LoadNamed(MakeUnique(name), feedback);
+  const Operator* op =
+      javascript()->LoadNamed(MakeUnique(name), feedback, language_mode());
   Node* node = NewNode(op, object, BuildLoadFeedbackVector());
   return Record(js_type_feedback_, node, feedback.slot());
 }
@@ -3544,8 +3545,9 @@ Node* AstGraphBuilder::BuildNamedSuperLoad(Node* receiver, Node* home_object,
                                            Handle<Name> name,
                                            const VectorSlotPair& feedback) {
   Node* name_node = jsgraph()->Constant(name);
-  const Operator* op = javascript()->CallRuntime(Runtime::kLoadFromSuper, 3);
-  Node* node = NewNode(op, receiver, home_object, name_node);
+  Node* language = jsgraph()->Constant(language_mode());
+  const Operator* op = javascript()->CallRuntime(Runtime::kLoadFromSuper, 4);
+  Node* node = NewNode(op, receiver, home_object, name_node, language);
   return Record(js_type_feedback_, node, feedback.slot());
 }
 
@@ -3553,9 +3555,10 @@ Node* AstGraphBuilder::BuildNamedSuperLoad(Node* receiver, Node* home_object,
 Node* AstGraphBuilder::BuildKeyedSuperLoad(Node* receiver, Node* home_object,
                                            Node* key,
                                            const VectorSlotPair& feedback) {
+  Node* language = jsgraph()->Constant(language_mode());
   const Operator* op =
-      javascript()->CallRuntime(Runtime::kLoadKeyedFromSuper, 3);
-  Node* node = NewNode(op, receiver, home_object, key);
+      javascript()->CallRuntime(Runtime::kLoadKeyedFromSuper, 4);
+  Node* node = NewNode(op, receiver, home_object, key, language);
   return Record(js_type_feedback_, node, feedback.slot());
 }