[11] RFR 8195694: ConstantBootstraps.invoke does not preserve variable arity

[Paul Sandoz]

Hi,

Please review this fix to the invoke BSM so that it preserves variable arity, 
if any:

  
http://cr.openjdk.java.net/~psandoz/jdk/JDK-8195694-constant-bsms-invoke-arity/webrev/
 
<http://cr.openjdk.java.net/~psandoz/jdk/JDK-8195694-constant-bsms-invoke-arity/webrev/>

This will be pushed to the hs repo.

Thanks,
Paul.