Removes all aliases to class names, since those were only needed back when those
classes were in different modules between Qt 4 and Qt 5 (typically QtGui vs.
QtWidgets).
With Qt 4 now dropped, Qt 5 and Qt 6 are compatible enough to use the full path
to the classes inside our code instead, which makes the wrapper much simpler.
This also cleans up some tests doing "QtCore = qt_api.QtCore" or similar, since
there were a lot of duplicated but unused such aliases. Seems simpler to me to
just use the direct name, even if a bit longer.
Removes all aliases to class names, since those were only needed back when those classes were in different modules between Qt 4 and Qt 5 (typically QtGui vs. QtWidgets).
With Qt 4 now dropped, Qt 5 and Qt 6 are compatible enough to use the full path to the classes inside our code instead, which makes the wrapper much simpler.
This also cleans up some tests doing "QtCore = qt_api.QtCore" or similar, since there were a lot of duplicated but unused such aliases. Seems simpler to me to just use the direct name, even if a bit longer.
Fixes #354