test Ruby fix

Author: ychin

src/if_ruby.c

@@ -73,6 +73,11 @@
 #  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
@@ -243,9 +248,6 @@ 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
-#  define rb_check_typeddata		dll_rb_check_typeddata
-# endif
 # define rb_class_path			dll_rb_class_path
 # ifdef USE_TYPEDDATA
 #  if RUBY_VERSION >= 23
@@ -601,6 +603,12 @@ 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