RFR: 8351565: Implement JEP 502: Stable Values (Preview) [v55]

[Per Minborg]

> Implement JEP 502.
> 
> The PR passes tier1-tier3 tests.

Per Minborg has updated the pull request incrementally with 20 additional commits since the last revision:

 - Update test/jdk/java/lang/StableValue/StableValueFactoriesTest.java
   
   Co-authored-by: Viktor Klang <viktor.klang at oracle.com>
 - Update test/jdk/java/lang/StableValue/StableSupplierTest.java
   
   Co-authored-by: Viktor Klang <viktor.klang at oracle.com>
 - Update test/jdk/java/lang/StableValue/StableMapTest.java
   
   Co-authored-by: Viktor Klang <viktor.klang at oracle.com>
 - Update test/jdk/java/lang/StableValue/StableFunctionTest.java
   
   Co-authored-by: Viktor Klang <viktor.klang at oracle.com>
 - Update test/jdk/java/lang/StableValue/StableIntFunctionTest.java
   
   Co-authored-by: Viktor Klang <viktor.klang at oracle.com>
 - Update test/jdk/java/lang/StableValue/StableListTest.java
   
   Co-authored-by: Viktor Klang <viktor.klang at oracle.com>
 - Update src/java.base/share/classes/java/lang/StableValue.java
   
   Co-authored-by: Viktor Klang <viktor.klang at oracle.com>
 - Update src/java.base/share/classes/java/lang/StableValue.java
   
   Co-authored-by: Viktor Klang <viktor.klang at oracle.com>
 - Update src/java.base/share/classes/java/lang/StableValue.java
   
   Co-authored-by: Viktor Klang <viktor.klang at oracle.com>
 - Update src/java.base/share/classes/java/lang/StableValue.java
   
   Co-authored-by: Viktor Klang <viktor.klang at oracle.com>
 - ... and 10 more: https://git.openjdk.org/jdk/compare/70a15815...2a36bb33

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/23972/files
  - new: https://git.openjdk.org/jdk/pull/23972/files/70a15815..2a36bb33

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23972&range=54
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23972&range=53-54

  Stats: 28 lines in 7 files changed: 0 ins; 0 del; 28 mod
  Patch: https://git.openjdk.org/jdk/pull/23972.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23972/head:pull/23972

PR: https://git.openjdk.org/jdk/pull/23972