Only single tuple supported in case expression list

The following produces an error

func foo() {
	switch (0, 0) {
		case (1, 1), (2, 2):    // Error: colon expected
			break
		default:
			break
	}
}

Thanks, logged as bugs://77041

bugs://77041 got closed with status fixed.

Logged as bugs://i64809.

bugs://i64809 was closed as fixed.