Refactor common unit test code.

src/compiler/instruction-selector-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_INSTRUCTION_SELECTOR_UNITTEST_H_
 #define V8_COMPILER_INSTRUCTION_SELECTOR_UNITTEST_H_
 
 #include <deque>
 #include <set>
 
 #include "src/base/utils/random-number-generator.h"
-#include "src/compiler/compiler-unittests.h"
 #include "src/compiler/instruction-selector.h"
 #include "src/compiler/raw-machine-assembler.h"
+#include "src/test/test-utils.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
-class InstructionSelectorTest : public CompilerTest {
+class InstructionSelectorTest : public TestWithContext, public TestWithZone {
  public:
   InstructionSelectorTest();
-  virtual ~InstructionSelectorTest() {}
+  virtual ~InstructionSelectorTest();
 
   base::RandomNumberGenerator* rng() { return &rng_; }
 
   class Stream;
 
   enum StreamBuilderMode {
     kAllInstructions,
     kTargetInstructions,
     kAllExceptNopInstructions
   };
@@ skipping 162 matching lines @@
 template <typename T>
 class InstructionSelectorTestWithParam
     : public InstructionSelectorTest,
       public ::testing::WithParamInterface<T> {};
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_SELECTOR_UNITTEST_H_