Move Options to dart:io.

runtime/bin/main.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 <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 
 #include "include/dart_api.h"
 #include "include/dart_debugger_api.h"
@@ skipping 361 matching lines @@
     Dart_Handle argument_value =
         DartUtils::NewString(options->GetArgument(i));
     if (Dart_IsError(argument_value)) {
       return argument_value;
     }
     Dart_Handle result = Dart_ListSetAt(dart_arguments, i, argument_value);
     if (Dart_IsError(result)) {
       return result;
     }
   }
-  Dart_Handle core_lib_url = DartUtils::NewString("dart:core");
-  if (Dart_IsError(core_lib_url)) {
-    return core_lib_url;
+  Dart_Handle io_lib_url = DartUtils::NewString("dart:io");
+  if (Dart_IsError(io_lib_url)) {
+    return io_lib_url;
   }
-  Dart_Handle core_lib = Dart_LookupLibrary(core_lib_url);
-  if (Dart_IsError(core_lib)) {
-    return core_lib;
+  Dart_Handle io_lib = Dart_LookupLibrary(io_lib_url);
+  if (Dart_IsError(io_lib)) {
+    return io_lib;
   }
   Dart_Handle runtime_options_class_name =
       DartUtils::NewString("_OptionsImpl");
   if (Dart_IsError(runtime_options_class_name)) {
     return runtime_options_class_name;
   }
   Dart_Handle runtime_options_class = Dart_GetClass(
-      core_lib, runtime_options_class_name);
+      io_lib, runtime_options_class_name);
   if (Dart_IsError(runtime_options_class)) {
     return runtime_options_class;
   }
   Dart_Handle executable_name_name =
       DartUtils::NewString("_nativeExecutable");
   if (Dart_IsError(executable_name_name)) {
     return executable_name_name;
   }
   Dart_Handle set_executable_name =
       Dart_SetField(runtime_options_class,
@@ skipping 419 matching lines @@
   Dart_ShutdownIsolate();
   // Terminate process exit-code handler.
   Process::TerminateExitCodeHandler();
   // Free copied argument strings if converted.
   if (argv_converted) {
     for (int i = 0; i < argc; i++) free(argv[i]);
   }
 
   return Process::GlobalExitCode();
 }