RFR (XXS) : JDK-8012961 - Do not restrict static interface methods to be private

[Bharadwaj Yadavalli]

I would like to request for a quick review of the following small 
change. Static interface method index should be looked up in interface 
table irrespective of the method's access flag being private or public. 
This change removes the restriction that added as part of recent changes 
made to support upcoming changes to compilation of lambda methods.

JBS : https://jbs.oracle.com/bugs/browse/JDK-8012961
Webrev : http://cr.openjdk.java.net/~bharadwaj/8012961/webrev/

Thanks,

Bharadwaj