comctl32/listview: Don't use special value (1) for item width to represent both zero and one pixel width.

d3d9: Use correct constant types (WINED3DPOOL_DEFAULT instead of D3DPOOL_DEFAULT and WINED3DRTYPE_SURFACE instead of D3DRTYPE_SURFACE).

oleaut32: Calling SetLcid with LOCALE_NEUTRAL is a special case which sets the first header lcid to US English and the second one to 0.

This causes memory corruption on MacOS, even if the app does not
reference undeclared arrays. Trying to avoid potential breakage in
broken apps which provoke undefined behavior is pointless if it causes
actual breakage in well-behaved apps (on ill-behaved drivers).

Thanks to Roland Scheidegger from Tungsten Graphics for the suggestion to
replace the 2 movs + dp2add with two MADs, where one can conveniently be
coissued with the other dp2add.

According to Stefan these are either typos or leftovers from using GL_HILO8_NV.