RFR: 8374752: Add more JLS links to javax.lang.model.element.* [v2]

[Joe Darcy]

> The various modeling interfaces in javax.lang.model.element.* would benefit from more direct links to the corresponding JLS sections.

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

  Respond to review feedback.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/29103/files
  - new: https://git.openjdk.org/jdk/pull/29103/files/bcdec61f..a2283b21

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=29103&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=29103&range=00-01

  Stats: 9 lines in 5 files changed: 5 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/29103.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29103/head:pull/29103

PR: https://git.openjdk.org/jdk/pull/29103