Patch print directly in corelib instead of going through coreimpl.

runtime/bin/dartutils.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 "bin/dartutils.h"
 
 #include "bin/extensions.h"
 #include "bin/directory.h"
 #include "bin/file.h"
 #include "include/dart_api.h"
@@ skipping 380 matching lines @@
   }
   return Dart_Error("wrong tag");
 }
 
 
 Dart_Handle DartUtils::PrepareForScriptLoading(const char* package_root,
                                                Dart_Handle builtin_lib) {
   // Setup the corelib 'print' function.
   Dart_Handle print =
       Dart_Invoke(builtin_lib, Dart_NewString("_getPrintClosure"), 0, 0);
-  Dart_Handle coreimpl = Dart_LookupLibrary(Dart_NewString("dart:coreimpl"));
-  Dart_Handle print_impl =
-      Dart_GetClass(coreimpl, Dart_NewString("PrintImplementation"));
-  Dart_Handle result = Dart_SetField(print_impl,
+  Dart_Handle corelib = Dart_LookupLibrary(Dart_NewString("dart:core"));
+  Dart_Handle result = Dart_SetField(corelib,
                                      Dart_NewString("_printClosure"), print);
 
   // Setup the 'timer' factory.
   Dart_Handle url = Dart_NewString(kIsolateLibURL);
   DART_CHECK_VALID(url);
   Dart_Handle isolate_lib = Dart_LookupLibrary(url);
   DART_CHECK_VALID(isolate_lib);
   Dart_Handle io_lib = Builtin::LoadAndCheckLibrary(Builtin::kIOLibrary);
   Dart_Handle timer_closure =
       Dart_Invoke(io_lib, Dart_NewString("_getTimerFactoryClosure"), 0, NULL);
@@ skipping 247 matching lines @@
 
 CObject* CObject::NewOSError(OSError* os_error) {
   CObject* error_message =
       new CObjectString(CObject::NewString(os_error->message()));
   CObjectArray* result = new CObjectArray(CObject::NewArray(3));
   result->SetAt(0, new CObjectInt32(CObject::NewInt32(kOSError)));
   result->SetAt(1, new CObjectInt32(CObject::NewInt32(os_error->code())));
   result->SetAt(2, error_message);
   return result;
 }