[llvm] [MC][debug_frame] Fix a bug in MCDwarfFrameEmitter::emit() so that per-function CIE can be generated when CIEs are different (PR #192727)

[Alexis Engelke via llvm-commits]

aengelke wrote:

Doesn't this cause unnecessarily redundant CIEs for e.g. C++ (one CIE with personality, one without)? Isn't it the case that the only thing that should be compared between the CIEs is the RAReg in the non-EH case?

https://github.com/llvm/llvm-project/pull/192727