RFR (L): 7054512: Compress class pointers after perm gen removal

[Vladimir Kozlov]

This look good.

Coleen, why we need relocation for metadata pointers?

Thanks,
Vladimir

Roland Westrelin wrote:
> compilers and SA support for compressed klass pointers.
> 
> http://cr.openjdk.java.net/~roland/7054512/webrev.00/
> 
> Roland.