RFR: 8356778: Compiler add event logging in case of failures

[Matthias Baesken]

We should add event logging to some related hotspot methods. While testing this functionality it turned out that sometimes the CompileTask pointer is 0, so this needs to be check to avoid crashes.

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Commit messages:
 - JDK-8356778

Changes: https://git.openjdk.org/jdk/pull/25188/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25188&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8356778
  Stats: 24 lines in 3 files changed: 23 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25188.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25188/head:pull/25188

PR: https://git.openjdk.org/jdk/pull/25188