Find_recursive_functions"Recursive functions" are those functions f that might call either:
f.For example in the following simultaneous definition of f g and h, f and g are recursive functions, but not h: let rec f x = g x
and g x = f x
and h x = g x
val in_function_declarations : Flambda.function_declarations -> backend:(module Backend_intf.S) -> Variable.Set.tDetermine the recursive functions, if any, bound by the given set of function declarations. This is only intended to be used by Flambda.create_function_declarations.