[PATCH] D156925: [Driver] Don't try to spell check unsupported options

[Fangrui Song via Phabricator via cfe-commits]

MaskRay accepted this revision.
MaskRay added a comment.
This revision is now accepted and ready to land.

Looks great! We've had `def _ : Joined<"--">` since commit 46fffee081b583a617fa94397b0c758bdf3a4a80 (2009) when TableGen based options were introduced.

Due to it, the error messages are slightly different, but I agree that it is not a meaningful difference:

  % fclang -qqq -c a.c
  clang: error: unknown argument: '-qqq'
  % fclang --qqq -c a.c
  clang: error: unsupported option '--qqq'


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https://reviews.llvm.org/D156925