arg: Marshal GType of 0 to null
Zero is a valid return value from e.g. GObject.type_from_name() in case the type in question is not registered. We marshal a value of 0 (G_TYPE_INVALID) into JS null. Closes #11.
11-handle-0-valued-gtype-gracefully in 19 minutes and 33 seconds (queued for 112 minutes and 33 seconds)8 jobs for