RFR: JDK-8302320: AsyncGetCallTrace obtains too few frames in sanity test [v3]

[Johannes Bechberger]

> Extends the existing AsyncGetCallTrace test case and fixes the issue.

Johannes Bechberger has updated the pull request incrementally with one additional commit since the last revision:

  Revert previous change

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/12535/files
  - new: https://git.openjdk.org/jdk/pull/12535/files/e63ab44a..da706d3b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=12535&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12535&range=01-02

  Stats: 9 lines in 2 files changed: 3 ins; 4 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/12535.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12535/head:pull/12535

PR: https://git.openjdk.org/jdk/pull/12535