Reenables b31414bf4f9898f7817a9fcf8a91f62ec26f3eaf. 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.
Reenables b31414bf4f9898f7817a9fcf8a91f62ec26f3eaf. 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.