Hello,

# [GNU-796] Stabilize GDB testsuite results in the CI

- Merged Gerrit review requests removing unsupported and flaky tests from the fast_check_gdb CI job, and also one that makes it flag regressions in the stable tests.

- Implemented change in Abe to build glibc with SystemTap probes enabled, but there's a kludge I still need to cleanup before submitting it for review.

- Working on change to tcwg_gnu-build.sh to make it run failed tests again to see if they change to passing status. I have a working prototype. Now running further tests and cleaning up the code.