Remove tracker from repo. Now available at: https://github.com/dart-lang/sample-tracker

BUG=
R=shailentuli@google.com

Review URL: https://codereview.chromium.org//697453002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41469 260f80e4-7a28-3924-810f-c04153c831b5
Remove searchable_list from Dart repo, it is now available in github

R=kathyw@google.com, shailentuli@google.com

Review URL: https://codereview.chromium.org//690203002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41470 260f80e4-7a28-3924-810f-c04153c831b5
Fix for an NPE in the debugger.

R=scheglov@google.com

Review URL: https://codereview.chromium.org//699733003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41471 260f80e4-7a28-3924-810f-c04153c831b5
Remove dcat, dgrep, jsonp from Dart repo. These now live in github at:
https://github.com/dart-lang/sample-dcat/
https://github.com/dart-lang/sample-dgrep/
https://github.com/dart-lang/sample-jsonp/

R=sethladd@google.com, shailentuli@google.com

Review URL: https://codereview.chromium.org//696573002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41472 260f80e4-7a28-3924-810f-c04153c831b5
Convert analysis starting point to an absolute path before analyzing.

This ensures that if the analysis starting point is part of an import
loop, then once the analysis engine reaches the starting point again,
it will recognize that it's the same file.

BUG=dartbug.com/21440
R=brianwilkerson@google.com

Review URL: https://codereview.chromium.org//688593005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41473 260f80e4-7a28-3924-810f-c04153c831b5