Refactor common unit test code.

src/compiler/common-operator-unittest.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/common-operator.h"
-#include "src/compiler/compiler-unittests.h"
 #include "src/compiler/operator-properties-inl.h"
+#include "src/test/test-utils.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 namespace {
 
-class CommonOperatorTest : public CompilerTest {
+class CommonOperatorTest : public TestWithZone {
  public:
   CommonOperatorTest() : common_(zone()) {}
   virtual ~CommonOperatorTest() {}
 
   CommonOperatorBuilder* common() { return &common_; }
 
  private:
   CommonOperatorBuilder common_;
 };
 
@@ skipping 33 matching lines @@
     EXPECT_EQ(arguments + 1, OperatorProperties::GetTotalInputCount(op));
     EXPECT_EQ(0, OperatorProperties::GetControlOutputCount(op));
     EXPECT_EQ(0, OperatorProperties::GetEffectOutputCount(op));
     EXPECT_EQ(1, OperatorProperties::GetValueOutputCount(op));
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8