Replace OStream with std::ostream.

test/cctest/compiler/test-operator.cc

 // Copyright 2013 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 <sstream>
+
 #include "src/v8.h"
 
 #include "src/compiler/operator.h"
 #include "test/cctest/cctest.h"
 
 using namespace v8::internal;
 using namespace v8::internal::compiler;
 
 #define NaN (v8::base::OS::nan_value())
-#define Infinity (std::numeric_limits<double>::infinity())
 
 TEST(TestOperatorMnemonic) {
   SimpleOperator op1(10, Operator::kNoProperties, 0, 0, "ThisOne");
   CHECK_EQ(0, strcmp(op1.mnemonic(), "ThisOne"));
 
   SimpleOperator op2(11, Operator::kNoProperties, 0, 0, "ThatOne");
   CHECK_EQ(0, strcmp(op2.mnemonic(), "ThatOne"));
 
   Operator1<int> op3(12, Operator::kNoProperties, 0, 1, "Mnemonic1", 12333);
   CHECK_EQ(0, strcmp(op3.mnemonic(), "Mnemonic1"));
@@ skipping 35 matching lines @@
   CHECK(!op1b.Equals(&op2b));
 
   CHECK(!op2a.Equals(&op1a));
   CHECK(!op2a.Equals(&op1b));
   CHECK(!op2b.Equals(&op1a));
   CHECK(!op2b.Equals(&op1b));
 }
 
 
 static SmartArrayPointer<const char> OperatorToString(Operator* op) {
-  OStringStream os;
+  std::ostringstream os;
   os << *op;
-  return SmartArrayPointer<const char>(StrDup(os.c_str()));
+  return SmartArrayPointer<const char>(StrDup(os.str().c_str()));
 }
 
 
 TEST(TestSimpleOperatorPrint) {
   SimpleOperator op1a(19, Operator::kNoProperties, 0, 0, "Another1");
   SimpleOperator op1b(19, Operator::kFoldable, 2, 2, "Another2");
 
   CHECK_EQ("Another1", OperatorToString(&op1a).get());
   CHECK_EQ("Another2", OperatorToString(&op1b).get());
 
@@ skipping 146 matching lines @@
 TEST(TestOperator1doublePrint) {
   Operator1<double> op1(12, Operator::kNoProperties, 0, 1, "Op1Test", 0);
   CHECK_EQ("Op1Test[0]", OperatorToString(&op1).get());
 
   Operator1<double> op2(12, Operator::kNoProperties, 0, 1, "Op1Test", 7.3);
   CHECK_EQ("Op1Test[7.3]", OperatorToString(&op2).get());
 
   Operator1<double> op3(12, Operator::kNoProperties, 0, 1, "FooBar", 2e+123);
   CHECK_EQ("FooBar[2e+123]", OperatorToString(&op3).get());
 
-  Operator1<double> op4(12, Operator::kNoProperties, 0, 1, "BarFoo", Infinity);
-  CHECK_EQ("BarFoo[inf]", OperatorToString(&op4).get());
-
   Operator1<double> op5(12, Operator::kNoProperties, 0, 1, "BarFoo", NaN);
   CHECK_EQ("BarFoo[nan]", OperatorToString(&op5).get());
 }