For PR1319:

More improvements:
1. Using ::errorInfo wasn't such a hot idea. Go back to just printing the
   offending line of code and the stderr output. This is sufficient and
   not entangled with Tcl goop.
2. Capture the problem report numbers and report them whether pass or fail.
   This helps quickly get some context when a test fails, if it has an
   associated PR number.

llvm-svn: 36010