now.
- Make the GDB quit processing non-abortable to cleanup everything
properly.
- Support DW_TAG_constant for Fortran in recent Fedora/RH GCCs.
- Fix crash on DW_TAG_module for Fortran in recent Fedora/RH GCCs.
- Readd resolving of bare names of constructors and destructors.
- Include various vendor testcases:
- Leftover zombie process (BZ 243845).
- Multithreaded watchpoints (`gdb.threads/watchthreads2.exp').
- PIE testcases (`gdb.pie/*').
- C++ contructors/destructors (`gdb.cp/constructortest.exp').
