[ruby-cvs:78278] fc22b0eaa3 (master): Always forward declaration is needed

Nobuyoshi Nakada	2019-11-20 16:27:57 +0900 (Wed, 20 Nov 2019)

  New Revision: fc22b0eaa3

  https://github.com/ruby/ruby/commit/fc22b0eaa3

  Log:
    Always forward declaration is needed
    
    `rb_resolve_refined_method_callable` is referenced in
    `refine_sym_proc_call`, even when pre-compiling mjit header on
    mswin.

  Modified files:
    vm_args.c