RFR: 8284016: Normalize handshake closure names [v4]

[Anton Artemov]

> Hi, please consider the following changes:
> 
> There are many classes inherited from the `HandshakeClosure` class, but they do not follow the same naming convention. In this PR we address this issue, all names are normalized in the following way:
> 
> `XXXDummyClassNameClosure -> XXXDummyClassNameHandshakeClosure`
> 
> or
> 
> `XXXDummyClassNameHandshake -> XXXDummyClassNameHandshakeClosure`
> 
> or
> 
> `XXXStrangeClassName -> SomewhatSimilarNameHandshakeClosure`
> 
> Tested in GHA and tiers 1 - 3.

Anton Artemov has updated the pull request incrementally with one additional commit since the last revision:

  8284016: Addressed reviewer's comments

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/26014/files
  - new: https://git.openjdk.org/jdk/pull/26014/files/65b9ecc5..bb95404c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26014&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26014&range=02-03

  Stats: 32 lines in 5 files changed: 0 ins; 0 del; 32 mod
  Patch: https://git.openjdk.org/jdk/pull/26014.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26014/head:pull/26014

PR: https://git.openjdk.org/jdk/pull/26014