Fix scope lookup of "type" for type inference brain

Author: nelfin

astroid/brain/brain_type.py

@@ -47,7 +47,8 @@ def infer_type_sub(node, context=None):
     :return: the inferred node
     :rtype: nodes.NodeNG
     """
-    if "type" in node.scope().locals:
+    node_scope, _ = node.scope().lookup("type")
+    if node_scope.qname() != "builtins":
         raise UseInferenceDefault()
     class_src = """
     class type:

tests/unittest_inference.py

@@ -4025,6 +4025,20 @@ def func(type):
         assert not isinstance(inferred, nodes.ClassDef)  # was inferred as builtins.type
         assert inferred is util.Uninferable
 
+    @pytest.mark.skipif(sys.version_info < (3, 8), reason="only fails on Python 3.9")
+    def test_infer_arg_called_type_defined_in_outer_scope_is_uninferable(self):
+        # Only this case seems to fail
+        node = extract_node(
+            """
+        def outer(type):
+            def inner():
+                type[0] #@
+        """
+        )
+        inferred = next(node.infer())
+        assert not isinstance(inferred, nodes.ClassDef)  # was inferred as builtins.type
+        assert inferred is util.Uninferable
+
 
 class GetattrTest(unittest.TestCase):
     def test_yes_when_unknown(self):