middle-end/112487 - inline and parameter mismatch

middle-end/112487 - inline and parameter mismatch

When passing an aggregate to a implicitly declared function that's
later declared as receiving a register type we can run into a
sanity assert that cannot hold for such gross mismatches.  Instead
of asserting avoid emitting a debug temp that's invalid.

	PR middle-end/112487
	* tree-inline.cc (setup_one_parameter): When the parameter
	is unused only insert a debug bind when there's not a gross
	mismatch in value and declared parameter type.  Do not assert
	there effectively isn't.

	* gcc.dg/torture/pr112487.c: New testcase.