Make test.dart run web tests on Windows.

frog/library.dart

Index: frog/library.dart
===================================================================
--- frog/library.dart	(revision 3477)
+++ frog/library.dart	(working copy)
@@ -63,6 +63,11 @@
     if (filename.startsWith('/')) return filename;
     if (filename.startsWith('file:///')) return filename;
     if (filename.startsWith('http://')) return filename;
+    if (const RegExp('[a-zA-Z]:/').hasMatch(filename) && 

[Bill Hesse, 2012/01/22 20:52:02]

Can't we use an anchored regexp here, 
if (const RegExp('^[a-zA-Z]:/').hasMatch(filename)) return filename;
?

[Emily Fortuna, 2012/01/23 18:27:41]

Much nicer. Done.

On 2012/01/22 20:52:02, Bill Hesse wrote:

+        filename.startsWith(
+        (const RegExp('[a-zA-Z]:/')).stringMatch(filename))) {
+      return filename;
+    }
     return joinPaths(sourceDir, filename);
   }