Disable tests relying on GC/weakref

Author: otethal

graalpython/lib-python/3/test/test_dict.py

@@ -864,6 +864,7 @@ def test_empty_presized_dict_in_freelist(self):
                  'f': None, 'g': None, 'h': None}
         d = {}
 
+    @support.impl_detail("finalization", graalpy=False)
     def test_container_iterator(self):
         # Bug #3680: tp_traverse was not implemented for dictiter and
         # dictview objects.

graalpython/lib-python/3/test/test_enum.py

@@ -2355,6 +2355,7 @@ def _missing_(cls, item):
         else:
             raise Exception('Exception not raised.')
 
+    @support.impl_detail("finalization", graalpy=False)
     def test_missing_exceptions_reset(self):
         import gc
         import weakref

graalpython/lib-python/3/test/test_picklebuffer.py

@@ -8,7 +8,7 @@
 import weakref
 import unittest
 
-from test.support import import_helper
+from test.support import import_helper, impl_detail
 
 
 class B(bytes):
@@ -64,6 +64,7 @@ def test_release(self):
         # Idempotency
         pb.release()
 
+    @impl_detail("finalization", graalpy=False)
     def test_cycle(self):
         b = B(b"foo")
         pb = PickleBuffer(b)