Add type: ignore annotations for Column.(__eq__|__neq__)

python/mypy#2783

Author: zero323

third_party/3/pyspark/sql/column.pyi

@@ -1,8 +1,5 @@
 # Stubs for pyspark.sql.column (Python 3.5)
 #
-# Note: Column.__eq__ and Column.__ne__ will fail on tests with
-# Return type of ... incompatible with supertype "object"
-# due to incorrect return type
 
 from typing import Any, Union
 from pyspark.sql.types import *
@@ -25,8 +22,8 @@ class Column:
     def __rmod__(self, other: Any) -> 'Column': ...
     def __pow__(self, other: Any) -> 'Column': ...
     def __rpow__(self, other: Any) -> 'Column': ...
-    def __eq__(self, other: Any) -> 'Column': ...
-    def __ne__(self, other: Any) -> 'Column': ...
+    def __eq__(self, other: Any) -> 'Column': ...  # type: ignore  
+    def __ne__(self, other: Any) -> 'Column': ...  # type: ignore 
     def __lt__(self, other: Any) -> 'Column': ...
     def __le__(self, other: Any) -> 'Column': ...
     def __ge__(self, other: Any) -> 'Column': ...