Reland r45669:

runtime/bin/dartutils.cc

Index: runtime/bin/dartutils.cc
===================================================================
--- runtime/bin/dartutils.cc	(revision 45696)
+++ runtime/bin/dartutils.cc	(working copy)
@@ -283,13 +283,13 @@
 }
 
 
-Dart_Handle DartUtils::ResolveScriptUri(Dart_Handle script_uri,
-                                        Dart_Handle builtin_lib) {
+Dart_Handle DartUtils::ResolveUriInWorkingDirectory(Dart_Handle script_uri,
+                                                    Dart_Handle builtin_lib) {
   const int kNumArgs = 1;
   Dart_Handle dart_args[kNumArgs];
   dart_args[0] = script_uri;
   return Dart_Invoke(builtin_lib,
-                     NewString("_resolveScriptUri"),
+                     NewString("_resolveInWorkingDirectory"),
                      kNumArgs,
                      dart_args);
 }
@@ -515,7 +515,7 @@
 
 // Callback function that gets called from dartutils when the library
 // source has been read. Loads the library or part into the VM.
-void FUNCTION_NAME(Builtin_LoadScript)(Dart_NativeArguments args) {
+void FUNCTION_NAME(Builtin_LoadSource)(Dart_NativeArguments args) {
   Dart_Handle tag_in = Dart_GetNativeArgument(args, 0);
   Dart_Handle resolved_script_uri = Dart_GetNativeArgument(args, 1);
   Dart_Handle library_uri = Dart_GetNativeArgument(args, 2);