[clang] [llvm] [Clang][inlineasm] Add special support for "rm" output constraints (PR #92040)

[Bill Wendling via cfe-commits]

bwendling wrote:

Alright. I merged CallBrPrepare into InlineAsmPrepare. I'm going on to the testcases. PTAL.

(BTW, the whole "pipeline" tests are horribly fragile and annoying.)

https://github.com/llvm/llvm-project/pull/92040