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Author SHA1 Message Date
asiva@google.com 3f6e337e87 Fix issue 20983 (https://code.google.com/p/dart/issues/detail?id=20983)
The check for load error on completion of async load was very inefficient.
Added a Hash set to ensure we don't repeatedly traverse through a library
when trying to establish transitive load errors.

R=iposva@google.com

Review URL: https://codereview.chromium.org//573293004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@40422 260f80e4-7a28-3924-810f-c04153c831b5
2014-09-18 02:01:26 +00:00