[CYPHER] RETURN ALL keyword is accepted but should raise syntax error

[ExtReMLapin]

Test: returnAllKeyword (line 255)

Cypher query to execute:

RETURN ALL 1 AS result

Expected behavior:

RETURN ALL 1 should raise a syntax error

ArcadeDB result:

{"1": 1}

Neo4j result:

Neo.ClientError.Statement.SyntaxError: Invalid input '1': expected an expression...

The RETURN ALL keyword without proper expressions should raise a syntax error, but ArcadeDB accepts it.

[lvca]

My reproduction shows ArcadeDB actually returns {result: 1} - the alias is preserved correctly.