3.6 class signature problems...

This time getting the class name in when a "load_closure" is added.

test/simple_source/bug36/01_call_function.py

@@ -1,10 +1,30 @@
 # Python 3.6's changes for calling functions.
 # See https://github.com/rocky/python-uncompyle6/issues/58
-# CALL_FUNCTION_EX takes 2 to 3 arguments on the stack: the function, the tuple of positional arguments,
-# and optionally the dict of keyword arguments if bit 0 of oparg is 1.
+
+# CALL_FUNCTION_EX takes 2 to 3 arguments on the stack:
+# * the function,
+# * the tuple of positional arguments, and optionally
+# * the dict of keyword arguments if bit 0 of oparg is 1.
 from foo import f, dialect, args, kwds, reader
 
 f(*[])
 
 # From Python 3.6 csv.py
+# (f, dialect) are positional arg tuples, *args, is by itself, i.e.
+# no tuple.
 x = reader(f, dialect, *args, **kwds)
+
+# From 3.6 functools.py
+# Below there is a load_closure instruction added
+def cmp_to_key(mycmp):
+    class K(object):
+        def __ge__():
+            return mycmp()
+    return
+
+# In this situation though, there is no load_closure
+def cmp2_to_key(mycmp):
+    class K2(object):
+        def __ge__():
+            return 5
+    return