Add initial support for compiler unit tests using GTest/GMock.

test/compiler-unittests/arm/instruction-selector-arm-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 "test/compiler-unittests/instruction-selector-unittest.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+class InstructionSelectorARMTest : public InstructionSelectorTest {};
+
+
+COMPILER_TEST_F(InstructionSelectorARMTest, Int32AddP) {
+  StreamBuilder m(this, kMachineWord32, kMachineWord32, kMachineWord32);
+  m.Return(m.Int32Add(m.Parameter(0), m.Parameter(1)));
+  Stream s = m.Build();
+  ASSERT_EQ(1U, s.size());
+  EXPECT_EQ(kArmAdd, s[0]->arch_opcode());
+  EXPECT_EQ(kMode_Operand2_R, s[0]->addressing_mode());
+  EXPECT_EQ(2U, s[0]->InputCount());
+  EXPECT_EQ(1U, s[0]->OutputCount());
+}
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8