[9] RfR: 8169289: JavaFX application in named module fails to launch if no main method

[David DeHaven]

> Looks good with two minor comments:
> 
> 1) It looks like the new "mainModule" parameter to launchApplicationWithArgs is only ever called with "null". Did you intend it to be called with the application module in the case of LM_MODULE?

You're correct... I wonder how that happened. It seems I never finished that part, probably due to splitting the work over the weekend :/

That needs to be corrected. Shouldn't take long.

-DrD-