hg: graal/graal-jvmci-8: Add assert for Unpack_uncommon_trap for ppc and always check for rethrow_exception

[doug.simon at oracle.com]

Changeset: 48fde4d03767
Author:    Gilles Duboscq <gilles.m.duboscq at oracle.com>
Date:      2015-11-04 16:11 +0100
URL:       http://hg.openjdk.java.net/graal/graal-jvmci-8/rev/48fde4d03767

Add assert for Unpack_uncommon_trap for ppc and always check for rethrow_exception

! src/cpu/ppc/vm/sharedRuntime_ppc.cpp
! src/share/vm/runtime/deoptimization.cpp