Major debugging breakage

[law@redhat.com]

  > It would be great to figure out a way to have tests of the stabs
  > output like you showed in your original message to check for subtle
  > linenumber breakage like this.  Do you think you will be able to cook
  > up a test case for this?  If you do, I would be happy to extend a
  > working test to generate more tests to cover other cases (like "while"
  > etc.)
It's somewhat of a pain to test within the GCC framework.  However, the
GDB testing framework is pretty well suited for having this kind of test.

jeff