//ww:run-exit 0
// A yield inside a switch arm yields from the enclosing MATCH; the
// match-yield walk didn't descend into N_SWITCH, so the match typed
// void and the yielded value was dropped.
package main;
fn pick(v: (i32 | str)) i32 = {
	let r: i32 = match (v) {
	case let x: i32 =>
		switch (x) {
		case 2: yield 42;
		case: yield 7;
		};
	case let s: str => yield 0;
	};
	return r;
};
export fn main() i32 = {
	let u: (i32 | str) = 2;
	if (pick(u) == 42) { return 0; };
	return 1;
};