fix cpp11 compile errors

runtime/vm/handles.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/handles.h"
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/flags.h"
 #include "vm/isolate.h"
 #include "vm/os.h"
 #include "vm/raw_object.h"
 #include "vm/visitor.h"
 #include "vm/zone.h"
 
 #include "vm/handles_impl.h"
 
 namespace dart {
 
 DEFINE_FLAG(bool, verify_handles, false, "Verify handles.");
 DEFINE_DEBUG_FLAG(bool, trace_handles,
                   false, "Traces allocation of handles.");
 
 
 VMHandles::~VMHandles() {
 #ifdef DEBUG
     if (FLAG_trace_handles) {
-      OS::PrintErr("***   Handle Counts for 0x(%"Px"):Zone = %d,Scoped = %d\n",
+      OS::PrintErr("***   Handle Counts for 0x(%" Px
+                   "):Zone = %d,Scoped = %d\n",
                    reinterpret_cast<intptr_t>(this),
                    CountZoneHandles(), CountScopedHandles());
-      OS::PrintErr("*** Deleting VM handle block 0x%"Px"\n",
+      OS::PrintErr("*** Deleting VM handle block 0x%" Px "\n",
                    reinterpret_cast<intptr_t>(this));
     }
 #endif
 }
 
 
 void VMHandles::VisitObjectPointers(ObjectPointerVisitor* visitor) {
   return Handles<kVMHandleSizeInWords,
                  kVMHandlesPerChunk,
                  kOffsetOfRawPtr>::VisitObjectPointers(visitor);
@@ skipping 75 matching lines @@
   isolate()->IncrementNoHandleScopeDepth();
 }
 
 
 NoHandleScope::~NoHandleScope() {
   isolate()->DecrementNoHandleScopeDepth();
 }
 #endif  // defined(DEBUG)
 
 }  // namespace dart