Split a bool argument into two named functions

compiler/rustc_const_eval/src/interpret/terminator.rs

@@ -481,7 +481,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
         // FIXME: Depending on the PassMode, this should reset some padding to uninitialized. (This
         // is true for all `copy_op`, but there are a lot of special cases for argument passing
         // specifically.)
-        self.copy_op(&caller_arg_copy, &callee_arg, /*allow_transmute*/ true)?;
+        self.copy_op_allow_transmute(&caller_arg_copy, &callee_arg)?;
         // If this was an in-place pass, protect the place it comes from for the duration of the call.
         if let FnArg::InPlace(place) = caller_arg {
             M::protect_in_place_function_argument(self, place)?;