RFR: 8330703: Improve link syntax in javax.lang.model.util

[Joe Darcy]

Use javadoc-based from than HTML-based syntax for `@see` tags.

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Commit messages:
 - JDK-8330703: Improve link syntax in javax.lang.model.util

Changes: https://git.openjdk.org/jdk/pull/18869/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18869&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8330703
  Stats: 36 lines in 9 files changed: 1 ins; 0 del; 35 mod
  Patch: https://git.openjdk.org/jdk/pull/18869.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18869/head:pull/18869

PR: https://git.openjdk.org/jdk/pull/18869