Fix bad space handling in Uris.

tests/compiler/dart2js/path with spaces/file with spaces.dart

Index: tests/compiler/dart2js/path with spaces/file with spaces.dart
diff --git a/tests/language/disasssemble_test.dart b/tests/compiler/dart2js/path with spaces/file with spaces.dart
similarity index 53%
copy from tests/language/disasssemble_test.dart
copy to tests/compiler/dart2js/path with spaces/file with spaces.dart
index 8e532247e8e74e62973be3dc0e5ade64cb65386b..b0cc20402f823946fa54730f2bb581c9bf58365a 100644
--- a/tests/language/disasssemble_test.dart
+++ b/tests/compiler/dart2js/path with spaces/file with spaces.dart	
@@ -1,17 +1,9 @@
 // Copyright (c) 2014, 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.
-// Dart test program for testing isolate communication with
-// typed objects.
-// VMOptions=--disassemble
 
-// Tests proper object recognition in disassembler.
-
-f(x) {
- return "foo";
-}
+import 'library space/lib with spaces.dart';
 
 main() {
- print(f(0));
+  if (foo() != 499) throw "bad value";
 }
-