CodeGen: Add getInlineAsmMemoryOperandRegClass (#223959) Replace the use of getPointerRegClass to determine the register class from an asm memory constraint, working to delete it. When there are multiple pointer types there can't be just a single answer. Co-authored-by: Claude (Opus 4.8) <noreply@anthropic.com> GitOrigin-RevId: 2836b914b76bb6130b9cf6be95ef31918856039c