RFR: 8358600: Template-Framework Library: Template for TestFramework test class [v4]

[Emanuel Peter]

> We might want to write many IR/TestFramework tests, and so I would like to integrate a Template that generates the class, and the user has to only generate a list of tests.
> 
> This is a first extension for https://github.com/openjdk/jdk/pull/24217. I had already prototyped it earlier and plan to use it in multiple tests https://github.com/openjdk/jdk/pull/23418 (see `IRTestClass.java`).
> 
> https://github.com/openjdk/jdk/blob/dc640cbd8fb8ec76920a7ab52dfe7955ed1d77f2/test/hotspot/jtreg/compiler/lib/template_framework/library/TestFrameworkClass.java#L36-L45

Emanuel Peter has updated the pull request incrementally with one additional commit since the last revision:

  add hook example and comment for christian

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Changes:
  - all: https://git.openjdk.org/jdk/pull/25643/files
  - new: https://git.openjdk.org/jdk/pull/25643/files/256d922c..55c6b22b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25643&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25643&range=02-03

  Stats: 16 lines in 2 files changed: 15 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25643.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25643/head:pull/25643

PR: https://git.openjdk.org/jdk/pull/25643