Annotate type_literal_prefix_call_test.dart properly for analyzer.

TBR=sigurdm@google.com

Review URL: https://codereview.chromium.org//801593002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@42303 260f80e4-7a28-3924-810f-c04153c831b5