Move partial_fallback higher up inheritance chain

Author: sterliakov

mypy/semanal_shared.py

@@ -364,9 +364,6 @@ class HasPlaceholders(BoolTypeQuery):
     def __init__(self) -> None:
         super().__init__(ANY_STRATEGY)
 
-    def visit_tuple_type(self, t: TupleType, /) -> bool:
-        return super().visit_tuple_type(t) or t.partial_fallback.accept(self)
-
     def visit_placeholder_type(self, t: PlaceholderType) -> bool:
         return True
 

mypy/type_visitor.py

@@ -410,7 +410,7 @@ def visit_callable_type(self, t: CallableType, /) -> T:
         return self.query_types(t.arg_types + [t.ret_type])
 
     def visit_tuple_type(self, t: TupleType, /) -> T:
-        return self.query_types(t.items)
+        return self.query_types([t.partial_fallback] + t.items)
 
     def visit_typeddict_type(self, t: TypedDictType, /) -> T:
         return self.query_types(t.items.values())
@@ -550,7 +550,7 @@ def visit_callable_type(self, t: CallableType, /) -> bool:
             return args and ret
 
     def visit_tuple_type(self, t: TupleType, /) -> bool:
-        return self.query_types(t.items)
+        return self.query_types([t.partial_fallback] + t.items)
 
     def visit_typeddict_type(self, t: TypedDictType, /) -> bool:
         return self.query_types(list(t.items.values()))