Ensure object literal element boilerplates aren't modified.

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 373c6ea4ff41ad9ad3b10e0b85820a118829a749..e550f511288f0ee4236e2feeff3dfada551439d4 100644
--- a/src/compiler/ast-graph-builder.cc
+++ b/src/compiler/ast-graph-builder.cc
@@ -1627,7 +1627,7 @@ void AstGraphBuilder::VisitObjectLiteral(ObjectLiteral* expr) {
       BuildLoadObjectField(closure, JSFunction::kLiteralsOffset);
   Node* literal_index = jsgraph()->Constant(expr->literal_index());
   Node* constants = jsgraph()->Constant(expr->constant_properties());
-  Node* flags = jsgraph()->Constant(expr->ComputeFlags());
+  Node* flags = jsgraph()->Constant(expr->ComputeFlags(true));
   const Operator* op =
       javascript()->CallRuntime(Runtime::kCreateObjectLiteral, 4);
   Node* literal = NewNode(op, literals_array, literal_index, constants, flags);
@@ -1819,7 +1819,7 @@ void AstGraphBuilder::VisitArrayLiteral(ArrayLiteral* expr) {
       BuildLoadObjectField(closure, JSFunction::kLiteralsOffset);
   Node* literal_index = jsgraph()->Constant(expr->literal_index());
   Node* constants = jsgraph()->Constant(expr->constant_elements());
-  Node* flags = jsgraph()->Constant(expr->ComputeFlags());
+  Node* flags = jsgraph()->Constant(expr->ComputeFlags(true));
   const Operator* op =
       javascript()->CallRuntime(Runtime::kCreateArrayLiteral, 4);
   Node* literal = NewNode(op, literals_array, literal_index, constants, flags);