[jdk17u-dev] RFR: 8291154: Create a non static nested class without enclosing class throws VerifyError

[Goetz Lindenmaier]

I backport this for parity with 17.0.10-oracle.

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Commit messages:
 - Backport f96aee74010476a850175f7012c196e40a31c188

Changes: https://git.openjdk.org/jdk17u-dev/pull/1894/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1894&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8291154
  Stats: 22 lines in 3 files changed: 21 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1894.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1894/head:pull/1894

PR: https://git.openjdk.org/jdk17u-dev/pull/1894