Add unittest and matcher to the dartium and standalone deps files.

R=sigmund@google.com

Review URL: https://codereview.chromium.org/814883003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@42523 260f80e4-7a28-3924-810f-c04153c831b5
Re-apply "Remove unittest and matcher from the repo."

This was originally submitted as r42497 and reverted by r42498. This CL fixes
the failing isolate test, and https://codereview.chromium.org/814883003/ fixes
the Dartium and Standalone issues.

R=sigmund@google.com

Review URL: https://codereview.chromium.org//807193003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@42524 260f80e4-7a28-3924-810f-c04153c831b5
Catch exceptions in refactorings and return them as a SERVER_ERROR.

R=brianwilkerson@google.com
BUG= https://code.google.com/p/dart/issues/detail?id=21907

Review URL: https://codereview.chromium.org//815233002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@42526 260f80e4-7a28-3924-810f-c04153c831b5
Re-add http_server to pkg.status.

TBR

Review URL: https://codereview.chromium.org//819473003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@42527 260f80e4-7a28-3924-810f-c04153c831b5