This commit revises the contribution for gh-25921 in the following ways.
- Use instanceof pattern matching
- Use List.of() and Map.of()
- Add missing @since tags
- Polish Javadoc
- Rename isNegativeNumber() to isNegativeNumberLiteral()
- Restructure InlineCollectionTests using @Nested, etc.
- Fix testListWithVariableNotCached() test: it previously set a SpEL
"variable" but tested a "property" in the root context object, which
effectively did not test anything.
- Introduce additional tests: listWithPropertyAccessIsNotCached(),
mapWithVariableIsNotCached(), and mapWithPropertyAccessIsNotCached().
e7cf54d4e2