[jdk16] RFR: 8258060: Update @jls tags for renamed/renumbered sections

[Joe Darcy]

Given upcoming changes in the JLS terminology around the term "type", various sections were renamed:

    https://download.java.net/java/early_access/jdk16/docs/specs/class-terminology-jls.html

The @jls tags in the java.compiler module which refer to the renamed sections should be updated.

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Commit messages:
 - 8258060

Changes: https://git.openjdk.java.net/jdk16/pull/4/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk16&pr=4&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8258060
  Stats: 12 lines in 6 files changed: 0 ins; 0 del; 12 mod
  Patch: https://git.openjdk.java.net/jdk16/pull/4.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk16 pull/4/head:pull/4

PR: https://git.openjdk.java.net/jdk16/pull/4