Fix resolution of packages in pub-build to allow '../../packages/foo/bar'

pkg/polymer/lib/src/build/import_inliner.dart

Index: pkg/polymer/lib/src/build/import_inliner.dart
diff --git a/pkg/polymer/lib/src/build/import_inliner.dart b/pkg/polymer/lib/src/build/import_inliner.dart
index 3b10cef3cc1c513fdcc5be469363b002bfce4c01..ed18ad05bb6ac94fe90ed66fb535c9dd61ea1232 100644
--- a/pkg/polymer/lib/src/build/import_inliner.dart
+++ b/pkg/polymer/lib/src/build/import_inliner.dart
@@ -211,7 +211,7 @@ class _UrlNormalizer extends TreeVisitor {
       // Techincally we shouldn't get there
       transform.logger.error("don't know how to include $id from $primaryId",
           span: span);
-      return null;
+      return href;

[Siggi Cherem (dart-lang), 2013/11/20 22:44:19]

this makes sure that we don't assign a null value on an attribute when we try to
rewrite it above. We just keep the original if we can't resolve it. (otherwise
you see the errors from these bugs:
https://code.google.com/p/dart/issues/detail?id=15012
https://code.google.com/p/dart/issues/detail?id=15083)

     }
 
     var builder = path.url;