[clang] [Clang][Targets] Fix crash on ARM/AArch64 Windows EABI targets with virtual inheritance (PR #173846)

[Jannik Voss via cfe-commits]

vossjannik wrote:

@yxsamliu sorry for the silence. The naming comment is addressed (the test now says ForceMicrosoftRecordLayout), I've shortened the commit message a bit and I've rebased onto current main, where the crash still reproduces without the fix. I don't have commit access; could you merge it, please?

https://github.com/llvm/llvm-project/pull/173846