[clang] [clang][Frontend] Table-drive compiler option dumping (PR #203161)

[David Zbarsky via cfe-commits]

dzbarsky wrote:

> It seems that GitHub has some kind of outage that's preventing me from merging. Please ping me tomorrow if I forget to try again.

@jansvoboda11 gentle ping, hopefully github woke up from its snooze

https://github.com/llvm/llvm-project/pull/203161