// goroutine.
func debugCallWrap1() {
	gp := getg()
	args := (*debugCallWrapArgs)(gp.param)
	dispatch, callingG := args.dispatch, args.callingG
	gp.param = nil

	// Dispatch call and trap panics.
	debugCallWrap2(dispatch)

	// Resume the caller goroutine.
	getg().schedlink.set(callingG)
	mcall(func(gp *g) {
		callingG := gp.schedlink.ptr()
		gp.schedlink = 0