[jdk11u-dev] RFR: 8309870: Using -proc:full should be considered requesting explicit annotation processing

[Andrew Lu]

I backport this for parity with 11.0.23-oracle.

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Commit messages:
 - Backport 3ce1240ca1b4139980444c171e317f4bfeff9314

Changes: https://git.openjdk.org/jdk11u-dev/pull/2493/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2493&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8309870
  Stats: 10 lines in 2 files changed: 8 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2493.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2493/head:pull/2493

PR: https://git.openjdk.org/jdk11u-dev/pull/2493