Refactor ChangeLowering class to avoid template specialization.

test/compiler-unittests/graph-unittest.h

 // 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.
 
-#ifndef V8_COMPILER_UNITTESTS_NODE_MATCHERS_H_
-#define V8_COMPILER_UNITTESTS_NODE_MATCHERS_H_
+#ifndef V8_COMPILER_UNITTESTS_GRAPH_UNITTEST_H_
+#define V8_COMPILER_UNITTESTS_GRAPH_UNITTEST_H_
 
+#include "src/compiler/graph.h"
 #include "src/compiler/machine-operator.h"
+#include "test/compiler-unittests/common-operator-unittest.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class HeapObject;
 template <class T>
 class PrintableUnique;
 
 namespace compiler {
 
-// Forward declarations.
-class Node;
+class GraphTest : public CommonOperatorTest {
+ public:
+  explicit GraphTest(int parameters = 1);
+  virtual ~GraphTest();
 
-using testing::Matcher;
+ protected:
+  Graph* graph() { return &graph_; }
+
+ private:
+  Graph graph_;
+};
+
+
+using ::testing::Matcher;
 
 Matcher<Node*> IsBranch(const Matcher<Node*>& value_matcher,
                         const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsMerge(const Matcher<Node*>& control0_matcher,
+                       const Matcher<Node*>& control1_matcher);
+Matcher<Node*> IsIfTrue(const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsIfFalse(const Matcher<Node*>& control_matcher);
 Matcher<Node*> IsHeapConstant(
     const Matcher<PrintableUnique<HeapObject> >& value_matcher);
 Matcher<Node*> IsInt32Constant(const Matcher<int32_t>& value_matcher);
 Matcher<Node*> IsPhi(const Matcher<Node*>& value0_matcher,
                      const Matcher<Node*>& value1_matcher,
                      const Matcher<Node*>& merge_matcher);
 Matcher<Node*> IsProjection(const Matcher<int32_t>& index_matcher,
                             const Matcher<Node*>& base_matcher);
 
 Matcher<Node*> IsLoad(const Matcher<MachineType>& type_matcher,
@@ skipping 25 matching lines @@
                              const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsInt32AddWithOverflow(const Matcher<Node*>& lhs_matcher,
                                       const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsConvertInt64ToInt32(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsChangeInt32ToFloat64(const Matcher<Node*>& input_matcher);
 
 }  //  namespace compiler
 }  //  namespace internal
 }  //  namespace v8
 
-#endif  // V8_COMPILER_UNITTESTS_NODE_MATCHERS_H_
+#endif  // V8_COMPILER_UNITTESTS_GRAPH_UNITTEST_H_