signature: Provide fixes and improvements, Part 1, addendum

This patch had a way too complicated method to find
out if something is a method, and this broke on
Python 2 because we don't have the __qualname__
attribute everywhere.

But this can be done much easier: We check the type and see
if it is a function or builtin function.
Everything else must be a method, no matter what it is :)

Change-Id: I07e5690f36e4ed4d50ea5e203233b369dc70fa5f
Task-number: PYSIDE-510
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
(cherry picked from commit 609bd8121b9a45846b236ecf51226da026651d51)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 4 insertions, 5 deletions

diff --git a/sources/shiboken6/shibokenmodule/files.dir/shibokensupport/signature/lib/enum_sig.py b/sources/shiboken6/shibokenmodule/files.dir/shibokensupport/signature/lib/enum_sig.py
index c90ad05f0..400c36de5 100644
--- a/sources/shiboken6/shibokenmodule/files.dir/shibokensupport/signature/lib/enum_sig.py
+++ b/sources/shiboken6/shibokenmodule/files.dir/shibokensupport/signature/lib/enum_sig.py
@@ -48,6 +48,7 @@ by producing a lot of clarity.
 """
 
 import sys
+import types
 from shibokensupport.signature import inspect
 from shibokensupport.signature import get_signature as get_sig
 
@@ -80,12 +81,10 @@ class ExactEnumerator(object):
     def is_method(self):
         """
         Is this function a method?
-        We check if it is not in a sub-structure
+        We check if it is a simple function.
         """
-        func = self.func
-        if hasattr(func, "__func__"):
-            func = func.__func__
-        return func.__name__ != func.__qualname__
+        tp = type(self.func)
+        return tp not in (types.BuiltinFunctionType, types.FunctionType)
 
     def after_enum(self):
         ret = self._after_enum