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

[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).

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Commit messages:
 - Adress comments in original PR
 - Add sections

Changes: https://git.openjdk.org/jdk/pull/28388/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28388&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8372146
  Stats: 25 lines in 6 files changed: 6 ins; 9 del; 10 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