RFR: 8155591: Misleading warning when not overriding close method in interface extending AutoCloseable [v3]

[Archie Cobbs]

> The compiler generates a warning if you declare a `close()` method that throws any supertype of `InterruptedException` in a class or interface extending `AutoCloseable`. This is because suppressed `InterruptedException`'s are likely to lead to misbehavior at runtime.
> 
> However, this feature also generates a warning due to `AutoCloseable.close()` itself, if you simply inherit it. For example:
> 
> $ cat MyClass.java
> public interface MyClass extends AutoCloseable {
> }
> $ javac -Xlint:try MyClass.java
> MyClass.java:1: warning: [try] auto-closeable resource MyClass has a member method close() that could throw InterruptedException
> public interface MyClass extends AutoCloseable {
>        ^
> 1 warning
> 
> The warning is not useful because `AutoCloseable.close()` is abstract and so it's going to be some other class' job to deal with the throws clause.
> 
> This change prevents `AutoCloseable.close()` itself from triggering the warning in a class declaration. We preserve the existing behavior in which a warning is generated at the use site (i.e., at the try-with-resources statement).

Archie Cobbs 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 five additional commits since the last revision:

 - Add more regression test variants.
 - Fix missed warning when close() method implemented in superclass.
 - Merge branch 'master' into JDK-8155591
 - Merge branch 'master' into JDK-8155591 to get recent build fixes.
 - Don't warn about AutoCloseable.close() itself throwing InterruptedException.

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/27062/files
  - new: https://git.openjdk.org/jdk/pull/27062/files/3f769967..d9b78c60

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27062&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27062&range=01-02

  Stats: 129414 lines in 2312 files changed: 73962 ins; 40822 del; 14630 mod
  Patch: https://git.openjdk.org/jdk/pull/27062.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27062/head:pull/27062

PR: https://git.openjdk.org/jdk/pull/27062