zig/test/cases/compile_errors/switch_on_slice.zig

pub export fn entry() void {
    var a: [:0]const u8 = "foo";
    switch (a) {
        ("--version"), ("version") => unreachable,
        else => {},
    }
}

// error
// backend=stage2
// target=native
//
// :3:13: error: switch on type '[:0]const u8'