RFR: 8303374: Compiler Implementation for Primitive types in patterns, instanceof, and switch (Preview) [v27]

[Aggelos Biboudis]

> This is the proposed patch for Primitive types in patterns, instanceof, and switch (Preview).
> 
> Draft spec here: https://cr.openjdk.org/~abimpoudis/instanceof/jep443-20231010/specs/instanceof-jls.html

Aggelos Biboudis has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 33 commits:

 - Merge branch 'master' into primitive-patterns
   
   # Conflicts:
   #	src/jdk.compiler/share/classes/com/sun/tools/javac/code/Preview.java
   #	src/jdk.compiler/share/classes/com/sun/tools/javac/code/Source.java
 - Add tests for new data types in switch statements
 - Fix Bootstrap initialization error by using `explicitCastArguments` for integral tests
 - Fix SwitchBootstraps for pattern matching over longs
 - Merge branch 'master' into primitive-patterns
 - Improve javadoc of ExactConversionsSupport
   
   Co-authored-by: Raffaello Giulietti <raffaello.giulietti at oracle.com>
 - Adjust javadoc on ExactConversionsSupport
 - Merge branch 'master' into primitive-patterns
 - Address review
   
   - Add comments
   - Rename exactness methods
   - Use convenience methods from TypeTag for checkUnconditionallyExactPrimitives in Types
   - Port isStrictSubRangeOf to Wrapper and use it for unconditionalExactnessCheck in SwitchBootstraps
 - Fix duplicate method name and add a new test in PrimitivePatternsSwitchErrors
 - ... and 23 more: https://git.openjdk.org/jdk/compare/1ca2cfaf...b437373b

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

Changes: https://git.openjdk.org/jdk/pull/15638/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15638&range=26
  Stats: 3055 lines in 40 files changed: 2799 ins; 111 del; 145 mod
  Patch: https://git.openjdk.org/jdk/pull/15638.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15638/head:pull/15638

PR: https://git.openjdk.org/jdk/pull/15638