llvm-project

c51095f5 - [InstallAPI] Add installapi specific options & diagnostics (#85100)

[InstallAPI] Add installapi specific options & diagnostics (#85100) * A lot of `tapi installapi` options are already shared with clang, but not all. This patch handles installapi-specific options by filtering for them in the initial argv input, then passing the rest to the clang driver. * Installapi not only generates a text file but also reports to library developers when there are inconsistencies between an interface and its implementation. To allow this, add support for reporting installapi diagnostics. This will be leveraged in the verifier service.