Fix tests

Author: cdce8p

mypy/fastparse.py

@@ -1319,6 +1319,14 @@ def visit(self, node: ast3.expr) -> ProperType: ...
     @overload
     def visit(self, node: Optional[AST]) -> Optional[ProperType]: ...
 
+    @overload
+    def visit(self, node: ast3.expr,
+              is_type_comment: Optional[bool]) -> ProperType: ...
+
+    @overload
+    def visit(self, node: Optional[AST],
+              is_type_comment: Optional[bool]) -> Optional[ProperType]: ...
+
     def visit(self, node: Optional[AST],
               is_type_comment: Optional[bool] = False) -> Optional[ProperType]:
         """Modified visit -- keep track of the stack of nodes"""
@@ -1426,7 +1434,7 @@ def _extract_argument_name(self, n: ast3.expr) -> Optional[str]:
     def visit_Name(self, n: Name) -> Type:
         return UnboundType(n.id, line=self.line, column=self.convert_column(n.col_offset))
 
-    def visit_BinOp(self, n: ast3.BinOp, is_type_comment: Optional[bool] = False) -> Type:
+    def visit_BinOp(self, n: ast3.BinOp, is_type_comment: bool = False) -> Type:
         if not isinstance(n.op, ast3.BitOr):
             return self.invalid_type(n)
 

mypy/types.py

@@ -1719,9 +1719,9 @@ def serialize(self) -> JsonDict:
         assert False, "Synthetic types don't serialize"
 
 
-class Pep604Syntax(NamedTuple):
-    uses_pep_604_syntax: bool
-    is_type_comment: bool
+Pep604Syntax = NamedTuple('Pep604Syntax', [
+    ('uses_pep_604_syntax', bool),
+    ('is_type_comment', bool)])
 
 
 class UnionType(ProperType):