[PATCH] gas: Revert PR 32391 related commits to fix 3 regressions

[Sam James]

"H.J. Lu" <hjl.tools@gmail.com> writes:

> 9f2e3c21f65 Fix the handling or arguments and macro pseudo-variables inside nested assembler macros.
>
> introduced 3 regressions of PR gas/32484, PR gas/32486 and PR gas/32487.
> Revert all PR 32391 related commits and add tests for PR gas/32484,
> PR gas/32486, PR gas/32487.

I cannot approve it but I would like to see it reverted for now, as I
have to maintain a stack of reverts to keep testing trunk.