RFR: JDK-8136893: Improve early java.lang.invoke infrastructure initialization

[Vladimir Ivanov]

Peter,

> Ok, thanks Paul, Michael and Claes! I'll push it later today or early
> tomorrow after running some more tests (nashorn for example). If anybody
> else wants to comment, there's still some time (for example about the
> name of the package-private method)...
I'm late to the party :-)
Don't worry, looks good to me as well.

Thanks for taking care of the bug!

Best regards,
Vladimir Ivanov