RFR: JDK-8308913: Update core reflection for JEP 445 (preview) [v4]

[Joe Darcy]

> Explain in java.lang.Class how unnamed classes are modeled in core reflection.

Joe Darcy has updated the pull request incrementally with one additional commit since the last revision:

  Update reflective support.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/14165/files
  - new: https://git.openjdk.org/jdk/pull/14165/files/05244653..eead727d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14165&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14165&range=02-03

  Stats: 36 lines in 1 file changed: 29 ins; 0 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/14165.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14165/head:pull/14165

PR: https://git.openjdk.org/jdk/pull/14165