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

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 159536c2e1a8405ae2c8313eb0c467e3dfb67e21..f967a9775a067a55a29b8862053095e14b2c2df8 100644
--- a/src/compiler/ast-graph-builder.cc
+++ b/src/compiler/ast-graph-builder.cc
@@ -3459,7 +3459,7 @@
 
 Node* AstGraphBuilder::BuildKeyedLoad(Node* object, Node* key,
                                       const ResolvedFeedbackSlot& feedback) {
-  const Operator* op = javascript()->LoadProperty(feedback);
+  const Operator* op = javascript()->LoadProperty(feedback, language_mode());
   return Record(js_type_feedback_,
                 NewNode(op, object, key, GetFeedbackVector()), feedback.slot());
 }
@@ -3468,8 +3468,8 @@
 Node* AstGraphBuilder::BuildNamedLoad(Node* object, Handle<Name> name,
                                       const ResolvedFeedbackSlot& feedback,
                                       ContextualMode mode) {
-  const Operator* op =
-      javascript()->LoadNamed(MakeUnique(name), feedback, mode);
+  const Operator* op = javascript()->LoadNamed(MakeUnique(name), feedback,
+                                               language_mode(), mode);
   return Record(js_type_feedback_, NewNode(op, object, GetFeedbackVector()),
                 feedback.slot());
 }
@@ -3494,8 +3494,9 @@
     Node* receiver, Node* home_object, Handle<Name> name,
     const ResolvedFeedbackSlot& feedback) {
   Node* name_node = jsgraph()->Constant(name);
-  const Operator* op = javascript()->CallRuntime(Runtime::kLoadFromSuper, 3);
-  Node* value = NewNode(op, receiver, home_object, name_node);
+  Node* language = jsgraph()->Constant(language_mode());
+  const Operator* op = javascript()->CallRuntime(Runtime::kLoadFromSuper, 4);
+  Node* value = NewNode(op, receiver, home_object, name_node, language);
   return Record(js_type_feedback_, value, feedback.slot());
 }
 
@@ -3503,9 +3504,10 @@
 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, 3);
-  Node* value = NewNode(op, receiver, home_object, key);
+      javascript()->CallRuntime(Runtime::kLoadKeyedFromSuper, 4);
+  Node* value = NewNode(op, receiver, home_object, key, language);
   return Record(js_type_feedback_, value, feedback.slot());
 }