RFR: 8261088: Repeatable annotations without @Target cannot have containers that target module declarations [v4]

[Liam Miller-Cushon]

> Please review this fix to consolidate handling of default `@Target`s for repeated annotations, and permit repeatable annotations without an `@Target` to have container annotations that explicitly target `MODULE`.

Liam Miller-Cushon has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains one additional commit since the last revision:

  8261088: Repeatable annotations without @Target cannot have containers that target module declarations

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2412/files
  - new: https://git.openjdk.java.net/jdk/pull/2412/files/322a709e..01540967

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2412&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2412&range=02-03

  Stats: 97445 lines in 1942 files changed: 51560 ins; 35908 del; 9977 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2412.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2412/head:pull/2412

PR: https://git.openjdk.java.net/jdk/pull/2412