tests/basic/[a-f]*: Make skippable.

For small ports which don't have all features enabled.

tests/basics/class_super_object.py

@@ -1,4 +1,12 @@
 # Calling object.__init__() via super().__init__
+try:
+    # If we don't expose object.__init__ (small ports), there's
+    # nothing to test.
+    object.__init__
+except AttributeError:
+    import sys
+    print("SKIP")
+    sys.exit()
 
 class Test(object):
     def __init__(self):