Unable to specify ref_sink_function in metadata
I have a library that defines a type that can be floating, in order to make it work properly, I'd like to specify a ref_sink_function
in the metadata (I know that I could do this with a -custom.vala but having it in the metadata would be more elegant.
Also, the ref_sink_function is named foo_bar_ref_sink
so it might actually be great if Vala could automatically detect it.