spark slice function now respects inner field name

Author: timsaucer

python/tests/test_spark_functions.py

@@ -175,10 +175,6 @@ def test_slice(df):
     assert _val(df, spark.slice(col("a"), lit(2), lit(2))) == [2, 3]
 
 
-@pytest.mark.xfail(
-    strict=True,
-    reason="Upstream array_slice does not preserve Spark array field names",
-)
 def test_slice_spark_array(df):
     arr = spark.array(lit(1), lit(2), lit(3), lit(4))
     assert _val(df, spark.slice(arr, lit(2), lit(2))) == [2, 3]