Tag of history for the GDB Standalone debugger.  This work has been
pushed to the master branch in a different commit.
Clean up Standalone Debugger behaviour

- when starting an attached executable, no longer remove any
  executable launch
- don't save the memento for an attached launch
- when starting the debugger and no binary is specified after
  cancelling the executable dialog, issue a warning that there is
  nothing for the debugger to debug instead of an error
- fix NPE when no executable or anything else is specified

Change-Id: I35246977989d6f15402c10a3ea9130562fd390ba
4 files changed