runtime initialized sentinel-terminated array literal fails to initialize sentinel value

[andrewrk]

const std = @import("std");

test "runtime initialized sentinel-terminated array literal" {
    var c: u16 = 300;
    const f = &[_:0x9999]u16{c};
    const g = @ptrCast(*[4]u8, f);
    std.testing.expect(g[2] == 0x99);
    std.testing.expect(g[3] == 0x99);
}

Test case fails. Should pass.

[jayschwa]

Is the following test case failure covered by this issue? It looks like it should be compile-time to me, but figured I'd check before creating a new issue.

const std = @import("std");
const assert = std.debug.assert;

test "$ terminated slice" {
    const slice: [:'$']const u8 = "hello";

    assert(slice.len == 5);
    assert(slice[5] == '$');
}