fix inheritance

Author: tyralla

mypy/checkexpr.py

@@ -1486,10 +1486,11 @@ def check_call_expr_with_callee_type(
         proper_callee = get_proper_type(callee_type)
         if isinstance(e.callee, (NameExpr, MemberExpr)):
             node = e.callee.node
-            if (node is None) and (member is not None) and isinstance(object_type, Instance) and (
-                (symbol := object_type.type.names.get(member)) is not None
-            ):
-                node = symbol.node
+            if (node is None) and (member is not None) and isinstance(object_type, Instance):
+                for base in object_type.type.mro:
+                    if (symbol := base.names.get(member)) is not None:
+                        node = symbol.node
+                        break
             self.chk.warn_deprecated_overload_item(
                 node, e, target=callee_type, selftype=object_type
             )

test-data/unit/check-deprecated.test

@@ -405,6 +405,8 @@ class A:
     @deprecated("use `h2`  instead")
     def h(self, v: Union[int, str]) -> A: ...
 
+class B(A): ...
+
 a = A()
 a.f(1)  # E: overload def (self: __main__.A, v: builtins.int) of function __main__.A.f is deprecated: pass `str` instead
 a.f("x")
@@ -413,6 +415,14 @@ a.g("x")  # E: overload def (self: __main__.A, v: builtins.str) of function __ma
 a.h(1)  # E: function __main__.A.h is deprecated: use `h2`  instead
 a.h("x")  # E: function __main__.A.h is deprecated: use `h2`  instead
 
+b = B()
+b.f(1)  # E: overload def (self: __main__.A, v: builtins.int) of function __main__.A.f is deprecated: pass `str` instead
+b.f("x")
+b.g(1)
+b.g("x")  # E: overload def (self: __main__.A, v: builtins.str) of function __main__.A.g is deprecated: pass `int` instead
+b.h(1)  # E: function __main__.A.h is deprecated: use `h2`  instead
+b.h("x")  # E: function __main__.A.h is deprecated: use `h2`  instead
+
 [builtins fixtures/tuple.pyi]