[turbofan] Fix type feedback vector for stub compilation.

src/compiler/ast-graph-builder.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/ast-graph-builder.h"
 
 #include "src/compiler.h"
 #include "src/compiler/ast-loop-assignment-analyzer.h"
 #include "src/compiler/control-builders.h"
 #include "src/compiler/js-type-feedback.h"
@@ skipping 3021 matching lines @@
 }
 
 
 LanguageMode AstGraphBuilder::language_mode() const {
   return info()->language_mode();
 }
 
 
 VectorSlotPair AstGraphBuilder::CreateVectorSlotPair(
     FeedbackVectorICSlot slot) const {
-  return VectorSlotPair(handle(info()->shared_info()->feedback_vector()), slot);
+  return VectorSlotPair(info()->feedback_vector(), slot);
 }
 
 
 uint32_t AstGraphBuilder::ComputeBitsetForDynamicGlobal(Variable* variable) {
   DCHECK_EQ(DYNAMIC_GLOBAL, variable->mode());
   bool found_eval_scope = false;
   uint32_t check_depths = 0;
   for (Scope* s = current_scope(); s != nullptr; s = s->outer_scope()) {
     if (s->num_heap_slots() <= 0) continue;
     // TODO(mstarzinger): If we have reached an eval scope, we check all
@@ skipping 1249 matching lines @@
     // Phi does not exist yet, introduce one.
     value = NewPhi(inputs, value, control);
     value->ReplaceInput(inputs - 1, other);
   }
   return value;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8