Replace OStream with std::ostream.

test/cctest/compiler/test-scheduler.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/v8.h"
 #include "test/cctest/cctest.h"
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/generic-node-inl.h"
 #include "src/compiler/generic-node.h"
@@ skipping 77 matching lines @@
 static Schedule* ComputeAndVerifySchedule(int expected, Graph* graph) {
   if (FLAG_trace_turbo) {
     OFStream os(stdout);
     os << AsDOT(*graph);
   }
 
   Schedule* schedule = Scheduler::ComputeSchedule(graph);
 
   if (FLAG_trace_turbo_scheduler) {
     OFStream os(stdout);
-    os << *schedule << endl;
+    os << *schedule << std::endl;
   }
   ScheduleVerifier::Run(schedule);
   CHECK_EQ(expected, GetScheduledNodeCount(schedule));
   return schedule;
 }
 
 
 TEST(RPODegenerate1) {
   HandleAndZoneScope scope;
   Schedule schedule(scope.main_zone());
@@ skipping 1597 matching lines @@
   Node* d3 = CreateDiamond(&graph, &common, add);
   Node* ret = graph.NewNode(common.Return(), d3, start, start);
   Node* end = graph.NewNode(common.End(), ret, start);
 
   graph.SetEnd(end);
 
   ComputeAndVerifySchedule(33, &graph);
 }
 
 #endif