Integrated: 8357654: [BACKOUT] JDK-8343580: Type error with inner classes of generic classes in functions generic by outer

[Aggelos Biboudis]

While the original fix, addresses the type checking issue, we believe its worth-backing out this change to investigate the implications of the fix to the generated code.

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Commit messages:
 - 8357654: [BACKOUT] JDK-8343580: Type error with inner classes of generic classes in functions generic by outer

Changes: https://git.openjdk.org/jdk/pull/25417/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25417&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357654
  Stats: 67 lines in 2 files changed: 0 ins; 66 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25417.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25417/head:pull/25417

PR: https://git.openjdk.org/jdk/pull/25417