Make the StackTrace library better handle core library frames.

Core library stack frames now have libraries and meaningful line numbers, so in
general we should preserve those. However, terse stack traces don't care about
the internal workings of the core libraries, so they now explicitly remove the
library and line number information.

R=rnystrom@google.com

Review URL: https://codereview.chromium.org//16097012

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/stack_trace@23621 260f80e4-7a28-3924-810f-c04153c831b5
4 files changed
tree: 7ddb90b7c67102da0a90641e009d192d8e47cd0f
  1. pkgs/