`continue` control flow in `else` branch of `while` applies to wrong loop

[andrewrk]

Zig Version: 0.10.0-dev.2992+1fee9eac8

test "else continue outer while" {
    var i: usize = 0;
    while (true) {
        i += 1;
        while (i > 5) {
            return;
        } else continue;
    }
}

Expected to pass; instead infinitely loops.

This is the root cause of

zig/lib/std/net/test.zig

Lines 106 to 107 in 1fee9ea

	test "resolve DNS" {
	if (@import("builtin").zig_backend != .stage1) return error.SkipZigTest;

For loops have the same problem:

test "else continue outer for" {
    var i: usize = 6;
    var buf: [5]u8 = undefined;
    while (true) {
        i -= 1;
        for (buf[i..5]) |_| {
            return;
        } else continue;
    }
}