stage2 AArch64: move copy-register-arg-to-stack code to fn prologue
This enhances the debugging experience as upon encountering a
breakpoint in a function, all arguments passed as registers have
already been moved to the stack, ready to be inspected by the
debugger.
090186a0c2joachimschmidt557 committed on 1/29/2023, 7:00:53 PMparent599b3ef