wxMenu::GetTitle() returned a string in GTK+ format (i.e. using underscores
instead of ampersands) instead of the expected wx one.
This is, of course, the right thing to do and it also fixes
wxMenuBar::FindMenuItem() as a side effect.
Closes#12672.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@66175 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
wxOSX rearranges the standard menu items such as wxID_EXIT and wxID_ABOUT and,
for the former, changes its text to "Quit", so don't use them in the menu unit
test which expects to find the items in the menus to which they were added and
exactly with the labels used when adding them.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@66144 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
