RFR: 8340131: Refactor internal makeHiddenClassDefiner to take ClassOption ... instead of Set [v6]

[Claes Redestad]

> Simple internal refactor to load a few classes less on startup. Arguably cleaner and avoids some iterator allocations.

Claes Redestad has updated the pull request incrementally with one additional commit since the last revision:

  Translate to int flags at edge, avoiding TOCTOU and simplifying trusted callers

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Changes:
  - all: https://git.openjdk.org/jdk/pull/21002/files
  - new: https://git.openjdk.org/jdk/pull/21002/files/62a88c03..0d97f165

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21002&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21002&range=04-05

  Stats: 32 lines in 3 files changed: 6 ins; 9 del; 17 mod
  Patch: https://git.openjdk.org/jdk/pull/21002.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21002/head:pull/21002

PR: https://git.openjdk.org/jdk/pull/21002