RFR: JDK-8302320: AsyncGetCallTrace obtains too few frames in sanity test [v6]

[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:

  Update full name

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Changes:
  - all: https://git.openjdk.org/jdk/pull/12535/files
  - new: https://git.openjdk.org/jdk/pull/12535/files/cd85c6a9..42bdfd8f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=12535&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12535&range=04-05

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 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