It's been a long time since the last round of these, since warnings on EWS are fatal now, which is saving me a lot of effort. But today I decided to try building with Clang instead of GCC, and it found some problems that GCC misses.
Pull request: https://github.com/WebKit/WebKit/pull/8928
Committed 259183@main (0b614af95032): <https://commits.webkit.org/259183@main> Reviewed commits have been landed. Closing PR #8928 and removing active labels.