Replace OStream with std::ostream.

src/compiler/change-lowering-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/change-lowering.h"
 #include "src/compiler/compiler-test-utils.h"
 #include "src/compiler/graph-unittest.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/compiler/simplified-operator.h"
 #include "src/compiler/typer.h"
 #include "testing/gmock-support.h"
 
 using testing::_;
 using testing::AllOf;
 using testing::Capture;
 using testing::CaptureEq;
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
-// TODO(bmeurer): Find a new home for these functions.
-inline std::ostream& operator<<(std::ostream& os, const MachineType& type) {
-  OStringStream ost;
-  ost << type;
-  return os << ost.c_str();
-}
-
-
 class ChangeLoweringTest : public GraphTest {
  public:
   ChangeLoweringTest() : simplified_(zone()) {}
   virtual ~ChangeLoweringTest() {}
 
   virtual MachineType WordRepresentation() const = 0;
 
  protected:
   int HeapNumberValueOffset() const {
     STATIC_ASSERT(HeapNumber::kValueOffset % kApiPointerSize == 0);
@@ skipping 426 matching lines @@
               IsIfTrue(AllOf(CaptureEq(&branch),
                              IsBranch(IsUint32LessThanOrEqual(
                                           val, IsInt32Constant(SmiMaxValue())),
                                       graph()->start()))),
               AllOf(CaptureEq(&if_false), IsIfFalse(CaptureEq(&branch))))));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8