RFR: 8361638: java.lang.classfile.CodeBuilder.catchingAll doesn't throw IllegalArgumentException if an existing catch block catches all exceptions

[Chen Liang]

The detection of catch builder arguments is not working for catch-all blocks. Update this to track CP indices including 0 so we can more easily validate the incoming ClassDesc are all non-primitive and there is no duplicate.

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Commit messages:
 - Formatting
 - 8361638: java.lang.classfile.CodeBuilder.catchingAll doesn't throw IllegalArgumentException if an existing catch block catches all exceptions

Changes: https://git.openjdk.org/jdk/pull/26372/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26372&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8361638
  Stats: 63 lines in 2 files changed: 40 ins; 9 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/26372.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26372/head:pull/26372

PR: https://git.openjdk.org/jdk/pull/26372