RFR: 8372146: Follow-up changes to the Lazy Constants JEP [v2]

[Per Minborg]

> This PR proposes to implement minor comments from the original integration of "Implement JEP 528: Lazy Constants (second preview)" (https://bugs.openjdk.org/browse/JDK-8366178).

Per Minborg has updated the pull request incrementally with one additional commit since the last revision:

  Clarify LC::equals

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Changes:
  - all: https://git.openjdk.org/jdk/pull/28388/files
  - new: https://git.openjdk.org/jdk/pull/28388/files/938b97ca..06916c4f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28388&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28388&range=00-01

  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/28388.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28388/head:pull/28388

PR: https://git.openjdk.org/jdk/pull/28388