[turbofan] Add proper type guards to escape analysis.

test/unittests/compiler/escape-analysis-unittest.cc

 // Copyright 2015 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/escape-analysis.h"
 #include "src/bit-vector.h"
 #include "src/compiler/escape-analysis-reducer.h"
 #include "src/compiler/graph-visualizer.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/simplified-operator.h"
 #include "src/compiler/types.h"
 #include "src/zone/zone-containers.h"
 #include "test/unittests/compiler/graph-unittest.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
-class EscapeAnalysisTest : public GraphTest {
+class EscapeAnalysisTest : public TypedGraphTest {
  public:
   EscapeAnalysisTest()
       : simplified_(zone()),
         jsgraph_(isolate(), graph(), common(), nullptr, nullptr, nullptr),
         escape_analysis_(graph(), common(), zone()),
         effect_(graph()->start()),
         control_(graph()->start()) {}
 
   ~EscapeAnalysisTest() {}
 
@@ skipping 478 matching lines @@
   ASSERT_EQ(object1, NodeProperties::GetValueInput(object_state, 0));
   ASSERT_EQ(object_state, NodeProperties::GetValueInput(object_state, 1));
 
   Node* object_state2 = NodeProperties::GetValueInput(state_values1, 0);
   ASSERT_EQ(object_state, object_state2);
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8