[llvm] [Support] report_fatal_error: Do not generate crash backtrace by default (PR #128495)

[Mehdi Amini via llvm-commits]

https://github.com/joker-eph requested changes to this pull request.

I disagree with the premise here:

> report_fatal_error is being used to report invalid inputs but the default reporting is a crash.

`report_fatal_error` is not meant to handle invalid inputs to the compiler: it is meant to crash on internal bug. Compiler ICE isn't correct error handling.


https://github.com/llvm/llvm-project/pull/128495