The idea is that the old variants have internal names with number
(signifying number of args), while the latest variant has a name without number.
Make sure there's a distinct function for each variant, and older vars are calling later ones in a sequence.
These calls likely to be inlined.
From upstream ca48926a37e848a1bcc162f77cc81e63ec7a1ca0
Previously the plugin system was obviously built around function
pointers, since a loaded plugin DLL would expose them statically.
This meant that the plugin classes I implemented also had to use
static methods, and all the variables had to be static as well.
This has been getting more and more annoying. So this commit is
an in-progress refactoring of AGS to allow for plugins to be
properly instance-based, and pointers to script methods will be
both a pointer to the plugin as well as the method name.
Walter Agazzi
Eugene Sandulenko
Paul Gilbert