RFR: 8313796: AsyncGetCallTrace crash on unreadable interpreter method pointer [v2]

[Richard Startin]

> We have observed invalid pointers to the interpreted method at Datadog. The fix is based on a discussion with and a code snippet from @parttimenerd.

Richard Startin has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  JDK-8313796: AsyncGetCallTrace crash on unreadable interpreter method pointer

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Changes:
  - all: https://git.openjdk.org/jdk/pull/15178/files
  - new: https://git.openjdk.org/jdk/pull/15178/files/d9c92a15..5520d1e0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15178&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15178&range=00-01

  Stats: 5 lines in 5 files changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/15178.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15178/head:pull/15178

PR: https://git.openjdk.org/jdk/pull/15178