+ add_raw_throw
+ self.add("PRINT_ERROR(\"Runtime error: %s\", \"{message.escape_to_c}\");")
+ add_raw_abort
+ end
+
+ # Generate a long jump if there is a catch block.
+ #
+ # This method should be called before the error messages and before a `add_raw_abort`.
+ fun add_raw_throw
+ do