[rfc][icedtea-web] Fix wrongly placed object construction helpers in IcedTeaScriptablePluginObject

[Pavel Tisnovsky]

Hi Adam,

ok for HEAD, thanks.

I'll need to look at patches which will follow and use this refactored code ;)

Cheers,
Pavel

----- Adam Domurad <adomurad at redhat.com> wrote:
> Whoever wrote these static helpers switched up which class they are 
> associated with -- it took me a while of being confused to notice it, 
> too. This patch places the object creation helper methods in the right 
> class.
> I added some more type safety too to prevent future confusion.
> 
> No changelog yet, I'll wait for an ack on the patch first.
> 
> Cheers,
> -Adam