[lworld] RFR: 8333757: [lworld] sync javac code generation with the latest spec

[Vicente Romero]

Renaming the Preload attribute plus changing its contents. Side-effects, changes to class file API, javap,etc

-------------

Commit messages:
 - changes to java.base and jdk.jdeps
 - 8333757: [lworld] sync javac code generation with the latest spec

Changes: https://git.openjdk.org/valhalla/pull/1118/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1118&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333757
  Stats: 354 lines in 22 files changed: 123 ins; 140 del; 91 mod
  Patch: https://git.openjdk.org/valhalla/pull/1118.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1118/head:pull/1118

PR: https://git.openjdk.org/valhalla/pull/1118