RFR: 8338406: BytecodeHelpers using wrong bootstrap method descriptor for condy

[Chen Liang]

`BytecodeHelpers.handleConstantDescToHandleInfo` is incorrectly using `DirectMethodHandleDesc.invocationType`, which accidentally works for static bootstrap methods so it's discovered only now with more extensive testing from bytebuddy. Cleaned up by reusing the correct `handleDescToHandleInfo` instead. Thanks to @raphw for the report.

For now, a workaround can be instead of using `DynamicConstantDesc`, translate to `ConstantDynamicEntry` in user applications.

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Commit messages:
 - Copyright year
 - 8338406: BytecodeHelpers using wrong invocation descriptor for condy

Changes: https://git.openjdk.org/jdk/pull/20586/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20586&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8338406
  Stats: 194 lines in 3 files changed: 105 ins; 87 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/20586.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20586/head:pull/20586

PR: https://git.openjdk.org/jdk/pull/20586