[clang] [clang][bytecode] Stack-allocate bottom function frame (PR #125253)

[Jorge Gorbe Moya via cfe-commits]

slackito wrote:

The problem described above also reproduced in one of the buildbots: https://lab.llvm.org/buildbot/#/builders/164/builds/6922/steps/17/logs/stdio

I'll revert this patch.

https://github.com/llvm/llvm-project/pull/125253