[clang] [flang] [flang][Driver] Preliminary support for -ftime-report (PR #107270)

[Tom Eccles via cfe-commits]

https://github.com/tblah commented:

Thanks for the quick updates. I don't have any idea off the top of my head how to fix the LLVM timings. Do any other reviewers have thoughts/experience in this area?

https://github.com/llvm/llvm-project/pull/107270