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

test/cctest/compiler/test-instruction.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/compiler/code-generator.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/instruction.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node.h"
 #include "src/compiler/operator.h"
 #include "src/compiler/schedule.h"
 #include "src/compiler/scheduler.h"
 #include "test/cctest/cctest.h"
 
-using namespace v8::internal;
-using namespace v8::internal::compiler;
+namespace v8 {
+namespace internal {
+namespace compiler {
 
 typedef v8::internal::compiler::Instruction TestInstr;
 typedef v8::internal::compiler::InstructionSequence TestInstrSeq;
 
 // A testing helper for the register code abstraction.
 class InstructionTester : public HandleAndZoneScope {
  public:  // We're all friends here.
   InstructionTester()
       : graph(zone()),
         schedule(zone()),
@@ skipping 283 matching lines @@
           CHECK(inputs[z].Equals(*m->InputAt(z)));
         }
 
         for (size_t z = 0; z < k; z++) {
           CHECK(temps[z].Equals(*m->TempAt(z)));
         }
       }
     }
   }
 }
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8