Move compiler cctests into v8::internal::compiler namespace.

test/cctest/compiler/test-run-deopt.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.
 
 // TODO(jochen): Remove this after the setting is turned on globally.
 #define V8_IMMINENT_DEPRECATION_WARNINGS
 
 #include "src/frames-inl.h"
 #include "test/cctest/cctest.h"
 #include "test/cctest/compiler/function-tester.h"
 
-using namespace v8::internal;
-using namespace v8::internal::compiler;
+namespace v8 {
+namespace internal {
+namespace compiler {
 
 static void IsOptimized(const v8::FunctionCallbackInfo<v8::Value>& args) {
   JavaScriptFrameIterator it(CcTest::i_isolate());
   JavaScriptFrame* frame = it.frame();
   return args.GetReturnValue().Set(frame->is_optimized());
 }
 
 
 static void InstallIsOptimizedHelper(v8::Isolate* isolate) {
   v8::Local<v8::Context> context = isolate->GetCurrentContext();
@@ skipping 86 matching lines @@
   FLAG_allow_natives_syntax = true;
 
   FunctionTester T(
       "(function foo() {"
       "  %DeoptimizeFunction(foo);"
       "  return 1;"
       "})");
 
   T.CheckCall(T.Val(1));
 }
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8