Test broken Vim master Ruby

Author: ychin

src/if_ruby.c

@@ -73,11 +73,6 @@
 #  define rb_num2int	rb_num2int_stub
 # endif
 
-# if RUBY_VERSION >= 20
-// USE_TYPEDDATA is not defined yet. We just check for 2.0.
-#  define rb_check_typeddata		rb_check_typeddata_stub
-#endif
-
 # if RUBY_VERSION == 21
 // Ruby 2.1 adds new GC called RGenGC and RARRAY_PTR uses
 // rb_gc_writebarrier_unprotect_promoted if USE_RGENGC
@@ -248,6 +243,12 @@ static int ruby_convert_to_vim_value(VALUE val, typval_T *rettv);
 # if RUBY_VERSION < 30
 #  define rb_check_type			dll_rb_check_type
 # endif
+# ifdef USE_TYPEDDATA
+#  if RUBY_VERSION >= 40
+#    define rbimpl_check_typeddata		dll_rbimpl_check_typeddata
+#  endif
+#  define rb_check_typeddata		dll_rb_check_typeddata
+# endif
 # define rb_class_path			dll_rb_class_path
 # ifdef USE_TYPEDDATA
 #  if RUBY_VERSION >= 23
@@ -375,6 +376,9 @@ VALUE *dll_rb_cTrueClass;
 static VALUE (*dll_rb_class_new_instance) (int,VALUE*,VALUE);
 static void (*dll_rb_check_type) (VALUE,int);
 # ifdef USE_TYPEDDATA
+#  if RUBY_VERSION >= 40
+static void *(*dll_rbimpl_check_typeddata) (VALUE,const rb_data_type_t *);
+#  endif
 static void *(*dll_rb_check_typeddata) (VALUE,const rb_data_type_t *);
 # endif
 static VALUE (*dll_rb_class_path) (VALUE);
@@ -603,12 +607,6 @@ rb_unexpected_type_stub(VALUE self, int t)
     dll_rb_unexpected_type(self, t);
 }
 #  endif
-#  ifdef USE_TYPEDDATA
-void *rb_check_typeddata_stub(VALUE obj, const rb_data_type_t *data_type)
-{
-    return dll_rb_check_typeddata(obj, data_type);
-}
-#  endif
 # endif // ifndef PROTO
 
 static HINSTANCE hinstRuby = NULL; // Instance of ruby.dll