RFR: 8323835: Updating ASM to 9.6 for JDK 23

[Vicente Romero]

Updating ASM to version 9.6,

Thanks in advance for the reviews,
Vicente

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Commit messages:
 - some additional minor changes
 - more changes
 - additional changes
 - 8323835: Updating ASM to 9.6 for JDK 23

Changes: https://git.openjdk.org/jdk/pull/17453/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17453&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8323835
  Stats: 1536 lines in 127 files changed: 1033 ins; 181 del; 322 mod
  Patch: https://git.openjdk.org/jdk/pull/17453.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17453/head:pull/17453

PR: https://git.openjdk.org/jdk/pull/17453