hg: ppc-aix-port/jdk7u/hotspot: Fix build with gcc 4.7

[volker.simonis at gmail.com]

Changeset: c3dc6c4c0f04
Author:    simonis
Date:      2013-01-09 10:29 +0000
URL:       http://hg.openjdk.java.net/ppc-aix-port/jdk7u/hotspot/rev/c3dc6c4c0f04

Fix build with gcc 4.7

gcc 4.7 is much more picky with casts and name lookup in dependent base classes. This change fixes the new warnings which are issued by the compiler.

! src/cpu/ppc/vm/nativeInst_ppc.hpp
! src/share/vm/utilities/taskqueue.hpp