No changes, just remove wxGtkIMData forward declarations.

This class doesn't exist any more, so clean up references to it.

See #3158.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73716 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Use wxCONTROL_PRESSED instead of wxCONTROL_SELECTED in wxOSX renderer code.

wxCONTROL_SELECTED is supposed to only apply to the selected items in a
listbox and similar cases whereas the buttons use wxCONTROL_PRESSED flag to
indicate whether they are toggled.

Correct the code in wxRendererMac to use the latter, for consistency with the
other platforms.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73717 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775