rb_reg_raise_str marked as NORETURN

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61920 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

re.c

@@ -686,6 +686,8 @@ rb_reg_error_desc(VALUE str, int options, const char *err)
 				 rb_enc_get(str), options, err);
 }
 
+NORETURN(static void rb_reg_raise_str(VALUE str, int options, const char *err));
+
 static void
 rb_reg_raise_str(VALUE str, int options, const char *err)
 {