ARRAY_OVERLAP with a NULL argument crashes the compiler

    f.checkScalar("arrays_overlap(null, null)", true,
        "NULL");

	at java.base/java.util.Objects.requireNonNull(Objects.java:222)
	at org.apache.calcite.sql.type.SqlTypeTransforms.lambda$static$6(SqlTypeTransforms.java:124)
	at org.apache.calcite.sql.type.SqlTypeTransformCascade.inferReturnType(SqlTypeTransformCascade.java:66)
	at org.apache.calcite.sql.SqlOperator.inferReturnType(SqlOperator.java:534)
	at org.apache.calcite.sql.SqlOperator.validateOperands(SqlOperator.java:503)
	at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:347)
	at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:231)
	at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:6714)