Inlining and reducing the `zeroes` call yields the following non-compiling program
```
const A = extern struct {
    x: [*c]u8,
};

pub fn zeroes(comptime T: type) T {
    var item: T = undefined;
    @memset(@ptrCast([*]u8, &item), 0, @sizeOf(T));
    return item;
}

pub fn main() anyerror!void {
    _ = comptime zeroes(A);
}
```