Reenables b31414bf. Also adds a new warning for missing `--symbol-graph-dir` arg when `--emit-extension-symbol-graphs` is provided. This also reverts the commit that removed.
mentioned in commit 9808279b
·mentioned in commit 9808279b
mentioned in commit d0dcf06a
·mentioned in commit d0dcf06a
mentioned in commit 28fa873d
·mentioned in commit 28fa873d
