Update types to unbreak build.

dart/lib/compiler/implementation/scanner/scanner_task.dart

 // 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.
 
 class ScannerTask extends CompilerTask {
   ScannerTask(Compiler compiler) : super(compiler);
   String get name => 'Scanner';
 
   void scanLibrary(LibraryElement library) {
     var compilationUnit = library.entryCompilationUnit;
@@ skipping 69 matching lines @@
     for (Import tag in imports.toLink()) {
       importLibraryFromTag(tag, library.entryCompilationUnit);
     }
   }
 
   /**
    * Handle a part tag in the scope of [library]. The [path] given is used as
    * is, any resolution should be done beforehand.
    */
   void loadPart(Part part, Uri path, LibraryElement library) {
-    Script sourceScript = compiler.readScript(path, part);
+    Script sourceScript = compiler.readScript(path, part.uri);
     CompilationUnitElement unit =
         new CompilationUnitElement(sourceScript, library);
     compiler.withCurrentElement(unit, () => compiler.scanner.scan(unit));
   }
 
   /**
    * Handle an import script tag by importing the referenced library into the
    * current library.
    * Returns the resolved library [Uri].
    */
@@ skipping 117 matching lines @@
   static const int RESOURCE = 4;
 
   /** Next state. */
   static const List<int> NEXT =
       const <int>[NO_TAG_SEEN,
                   IMPORT, // Only one library tag is allowed.
                   IMPORT,
                   SOURCE,
                   RESOURCE];
 }