This downgrades a FIXME that can be triggered in normal operation
through the use of, for example, SHGetIDListFromObject.

ole32/tests: Relax the reference counting tests a bit. We only care whether references are held or not.

Native riched20.dll seems to need an IRichEditOleCallback object in
order to get a buffer to store the image (using the GetNewStorage
method).

libwine: There are a few supercript characters (No, Lm types) that Windows marks as being either digit or as a letter.

libwine: There are a number of characters of non punctuation type in the latin I block that Windows considers to be punctuation.