hg: jdk/sandbox: 8209598: Clean up how messages are printed when CDS aborts start-up

[chris.hegarty at oracle.com]

Changeset: 9e29d8388514
Author:    ccheung
Date:      2018-10-25 21:40 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/9e29d8388514

8209598: Clean up how messages are printed when CDS aborts start-up
Summary: added a new function vm_exit_during_cds_dumping() to java.cpp so that it can be used when an error condition is encountered during CDS dumping.
Reviewed-by: iklam, dholmes, jiangli

! src/hotspot/share/classfile/classLoader.cpp
! src/hotspot/share/classfile/classLoaderExt.cpp
! src/hotspot/share/memory/metaspace.cpp
! src/hotspot/share/memory/metaspaceShared.cpp
! src/hotspot/share/runtime/java.cpp
! src/hotspot/share/runtime/java.hpp