RFR 8187696: missing ACC_VALUE in inner class attributes

[Maurizio Cimadamore]

Hi,
this patch fixes a problem with javac not generating ACC_VALUE flag for 
classes in the InnerClasses attribute. The flag was erroneously masked 
out in ClassWriter, and also not handled uniformly in the adjustFlags 
routine (which is used to convert javac internal flags into public ones).

Webrev here:

http://cr.openjdk.java.net/~mcimadamore/8187696/

P.S.

The fix also includes a minor javap fix to display ACC_VALUE correctly 
inside inner classes attributes.

Cheers
Maurizio