Simplify feedback vector creation and store in SharedFunctionInfo.

test/cctest/test-heap.cc

Index: test/cctest/test-heap.cc
diff --git a/test/cctest/test-heap.cc b/test/cctest/test-heap.cc
index 2001b3dfaf41615dfc27972050127eb57f865722..2453e54ba362bd164c2190b1488580338ea9eb6b 100644
--- a/test/cctest/test-heap.cc
+++ b/test/cctest/test-heap.cc
@@ -3057,8 +3057,7 @@ TEST(IncrementalMarkingClearsTypeFeedbackInfo) {
           *v8::Handle<v8::Function>::Cast(
               CcTest::global()->Get(v8_str("f"))));
 
-  Handle<FixedArray> feedback_vector(TypeFeedbackInfo::cast(
-      f->shared()->code()->type_feedback_info())->feedback_vector());
+  Handle<FixedArray> feedback_vector(f->shared()->feedback_vector());
 
   CHECK_EQ(2, feedback_vector->length());
   CHECK(feedback_vector->get(0)->IsJSFunction());