[strong] Implement strong mode restrictions on property access

test/unittests/compiler/js-type-feedback-unittest.cc

Index: test/unittests/compiler/js-type-feedback-unittest.cc
diff --git a/test/unittests/compiler/js-type-feedback-unittest.cc b/test/unittests/compiler/js-type-feedback-unittest.cc
index 7737cfeeed72d68cc03350c47aa70113fe3eb1d8..9c8ee7d3c42efc4943fea799119d027e3d606908 100644
--- a/test/unittests/compiler/js-type-feedback-unittest.cc
+++ b/test/unittests/compiler/js-type-feedback-unittest.cc
@@ -84,7 +84,7 @@ class JSTypeFeedbackTest : public TypedGraphTest {
 
     Unique<Name> name = Unique<Name>::CreateUninitialized(
         isolate()->factory()->NewStringFromAsciiChecked(string));
-    const Operator* op = javascript()->LoadNamed(name, feedback);
+    const Operator* op = javascript()->LoadNamed(name, feedback, SLOPPY);
     Node* load = graph()->NewNode(op, global, vector, context);
     if (mode == JSTypeFeedbackSpecializer::kDeoptimizationEnabled) {
       for (int i = 0; i < OperatorProperties::GetFrameStateInputCount(op);