RFR: 8295: Shutdown event type id is not properly translated for Oracle JDK 8

[Marcus Hirt]

The conversion from the legacy jfr 0.9 id wasn't happening for the VM shutdown event.

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Commit messages:
 - Shutdown event type id is not properly translated for Oracle JDK 8

Changes: https://git.openjdk.org/jmc/pull/614/files
  Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=614&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-8295
  Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jmc/pull/614.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/614/head:pull/614

PR: https://git.openjdk.org/jmc/pull/614