Since we can easily do that, just do it. No gurantee that we aren't
going to use rtti in the future.

Reviewed-by: dt

Solves a problem with infinitely running QProgressBar animation in
QMacStyle.

Reviewed-by: Roberto Raggi

There was a case where "childtype" had to be used instead of "type".

Instead of just removing the highlight.
Reviewed-by: Robert Loehning

Some fixes were needed after the tool chain type was changed from
QString to an enum.

Task-number: 259939

Reviewed-by: hjk

Let's not irritate MSVC

"Show in Finder", "Add new file...", "Add existing files...".

Also adding category folders for the different file types
(source files, header files, resource files, form files, other files).