Re: [PATCH 0/6] MR7970: mshtml: Misc prop fixes & improvements.

[Jacek Caban (＠jacek)]

Jacek Caban (@jacek) commented about dlls/mshtml/tests/documentmode.js:
>          window.toString.call(null);
>          ok(false, "expected exception calling window.toString with null context");
>      }catch(ex) {}
> -
> -
>    ok(!Object.hasOwnProperty.call(f, "arguments"), "arguments is a prop of createElement");
> -
>    ok(!Object.hasOwnProperty.call(f, "caller"), "caller is a prop of createElement");
> -
>    ok(!Object.hasOwnProperty.call(f, "length"), "length is a prop of createElement");

We already test "arguments" and "length" a few lines above using "in" expression. For the negative tests like this, "in" expressions are stronger tests.