RFR: JDK-8300279: Use generalized see and link tags in core libs in client libs

[Joe Darcy]

Use new javadoc capabilities courtesy JDK-8200337 to use more readable in javadoc source anchors AWT's Shape interface. Analogous change is out for review in core libs, JDK-8300133.

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Commit messages:
 - JDK-8300279: Use generalized see and link tags in core libs in client libs

Changes: https://git.openjdk.org/jdk/pull/12048/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12048&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8300279
  Stats: 7 lines in 1 file changed: 0 ins; 1 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/12048.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12048/head:pull/12048

PR: https://git.openjdk.org/jdk/pull/12048