RFR: 8335583: Avoid using pointers in CDS tables

[Matias Saavedra Silva]

There are several calls to mark_pointer which can be avoided if offsets are used instead, This will help to reduce the archive size and reduce startup time.

This patch introduces some utility functions in the first commit to assist in converting to and from u4 offsets. For ease of review, consider looking at each commit separately as they each address an individual pointer to offset change. Verified with tier 1-5 tests.

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Commit messages:
 - Cleanup
 - Replaced lambdaProxyClassKey
 - Replaced static_archive_invokers
 - Replaced runTimeClassInfo nest_host
 - Replaced runTimeClassInfo klass
 - Avoid using pointers in CDS tables

Changes: https://git.openjdk.org/jdk/pull/21837/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21837&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8335583
  Stats: 231 lines in 11 files changed: 162 ins; 19 del; 50 mod
  Patch: https://git.openjdk.org/jdk/pull/21837.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21837/head:pull/21837

PR: https://git.openjdk.org/jdk/pull/21837