Are you not supposed to be able to call a FastCC function from a CCC function?
I'm calling a CCC "main" function from OCaml and that "main" function calls
internal functions that require tail calls. With CCC everywhere it works
(except I don't get tail calls). If I use FastCC on all functions
except "main" then the function arguments are garbage.
Should I be doing something explicit in order to mix calling conventions?