[jdk11u-dev] RFR: 8236210: javac generates wrong annotation for fields generated from record components

[Liam Miller-Cushon]

This is a backport of [JDK-8236210: javac generates wrong annotation for fields generated from record components](https://bugs.openjdk.java.net/browse/JDK-8236210)

This is a partial backport.

* The focus of JDK-8236210 was a bug with records and most of the diff was to logic that was added to deal with records. However the patch also included a fix to the logic for checking annotation applicability in `Check.annotationApplicable` that fixes a bug with annotations on `var`, so I backported the part that is relevant to Java 11.
* I added a test for the issue specific to `var`, since the original test is for records and cannot be backported.

Testing: x86 build, affected tests

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Commit messages:
 - Backport 0f98701e8766b88a932e29ed2ba7dbd921e49786

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/771/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=771&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8236210
  Stats: 58 lines in 3 files changed: 42 ins; 0 del; 16 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/771.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/771/head:pull/771

PR: https://git.openjdk.java.net/jdk11u-dev/pull/771