bpo-44712: Replace "type(literal)" with corresponding builtin types (GH-27294)

I suppose it is a remnants of very old code written when str, int, list, dict, etc
were functions and not classes.

Lib/idlelib/browser.py

@@ -43,7 +43,7 @@ def transform_children(child_dict, modname=None):
                 # If obj.name != key, it has already been suffixed.
                 supers = []
                 for sup in obj.super:
-                    if type(sup) is type(''):
+                    if isinstance(sup, str):
                         sname = sup
                     else:
                         sname = sup.name