RFR: JDK-8329556: javax.lang.model suppor for Derived Record Creation (Preview)

[Joe Darcy]

Exploratory work in support of https://github.com/openjdk/jdk/pull/18509.

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Commit messages:
 - Add more support for component local variables.
 - Add uses of new visitor types.
 - JDK-8329556: javax.lang.model suppor for Derived Record Creation (Preview)
 - Baseline on 04 version of the webrev.

Changes: https://git.openjdk.org/jdk/pull/18590/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18590&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8329556
  Stats: 1640 lines in 49 files changed: 1550 ins; 20 del; 70 mod
  Patch: https://git.openjdk.org/jdk/pull/18590.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18590/head:pull/18590

PR: https://git.openjdk.org/jdk/pull/18590