[JsonPath] Add Nothing
enum to support special nothing value
#61749
+23
−11
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#61517 introduces custom functions mechanism. For consistency, RFC built-in functions will also use the new functions mechanism. In order to fully work, functions must be able to return the special
nothing
value defined by the RFC. This PR exposes the Nothing enum to the public API instead of storing it internally in the JsonCrawler with stdClass.Context: #61517 (comment)