API IsActionSelfCastKeyDown

From WoWWiki

Removed

This function was removed in 2.2.x. For backward compatibility (maybe you have a private server?) or you'd rather not track down every single call to this function, just add this somewhere in the Lua file:

if not IsActionSelfCastKeyDownthen
    function IsActionSelfCastKeyDown()
        return IsModifiedClick("SELFCAST")
    end
end