Strictly speaking the texture doesn't get unloaded, but it does get associated
with a different surface. The FBO cache in particular is much happier when it
gets notified of these.

Type qualifiers have only a meaning for lvalues.

comctl32/treeview: Use a code set by dispinfo holder to convert data encoding after TVN_GETDISPINFO.

comctl32/listview: Use a code set by dispinfo holder to convert data encoding after LVN_GETDISPINFO.

Some sln files use that as a section to keep things like changelogs,
which we are not interested in.

This fixes a regression introduced by commit
2a7a2371.