Some fixes and improvements in GCC

GCC 16 will probably release in a couple of months, and comes with a couple of my patches. There&rsquo;s nothing too big this time, but a couple of bug fixes and some quality-of-life changes. You no longer need to explicitly pass -ftest-coverage for -fcondition-coverage and -fpath-coverage to be useful, it is now implied. The -ftest-coverage flag controls if GCC creates the .gcno files gcov needs…