RFR: 8255784: appcds/javaldr/ExceptionDuringDumpAtObjectsInitPhase.java test failed resulting in VM crash [v2]

[Yumin Qi]

> Please review this simple change.
>   The crash is caused by vm_exit_during_initialization which calls vm_exit, the latter will go check vm shutdown procedures. The shutdown checks thread and lock state, finds inconsistent state so the check fails. Here we could just use vm_direct_exit with some message as the process terminated.  vm_direct_exit just calls os::exit which quits without generating a coredump.
> 
> Tests: tier1-4
> 
> Thanks
> Yumin

Yumin Qi has updated the pull request incrementally with one additional commit since the last revision:

  Changed vm_exit to vm_direct_exit to avoid shutdown check

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1040/files
  - new: https://git.openjdk.java.net/jdk/pull/1040/files/e1796d79..e3bb1adc

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1040&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1040&range=00-01

  Stats: 6 lines in 1 file changed: 2 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1040.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1040/head:pull/1040

PR: https://git.openjdk.java.net/jdk/pull/1040