[24] JEP 488: Primitive Types in Patterns, instanceof, and switch (Second Preview)

[mpalat]

ref: https://openjdk.org/jeps/488
https://bugs.openjdk.org/browse/JDK-8335876

JLS Changes here? => https://cr.openjdk.org/~abimpoudis/instanceof/latest/ - to confirm

Summary
Enhance pattern matching by allowing primitive types in all pattern contexts, and extend instanceof and switch to work with all primitive types.

This feature was originally proposed by JEP 455, and delivered as a preview feature in JDK 23
and the JDT Core issue #2298

[stephan-herrmann]

JLS ticket: https://bugs.openjdk.org/browse/JDK-8341409