Skip failing test

Author: slozier

tests/IronPython.Tests/Cases/IronPythonCasesManifest.ini

@@ -208,4 +208,4 @@ IsolationLevel=PROCESS # https://github.com/IronLanguages/ironpython3/issues/489
 FullFrames=true
 
 [IronPython.modules.system_related.test_sys]
-RunCondition=NOT $(IS_NETCOREAPP) # https://github.com/IronLanguages/ironpython3/issues/2055
+RunCondition=NOT $(IS_NETCOREAPP) # https://github.com/IronLanguages/ironpython3/issues/2057

tests/suite/test_dict_stdlib.py

@@ -30,6 +30,7 @@ def load_tests(loader, standard_tests, pattern):
         if is_mono:
             skip_tests += [
                 test.test_dict.DictTest('test_container_iterator'), # https://github.com/IronLanguages/ironpython3/issues/544
+                test.test_dict.DictTest('test_free_after_iterating') # AssertionError
             ]
 
         return generate_suite(tests, failing_tests, skip_tests)

tests/suite/test_stdconsole.py

@@ -404,7 +404,7 @@ def test_isatty(self):
         finally:
             self.batfile = hideDefaultBatch
 
-    @unittest.skipIf(not is_cli or is_netcoreapp, "https://github.com/IronLanguages/ironpython3/issues/2055")
+    @unittest.skipIf(not is_cli or is_netcoreapp, "https://github.com/IronLanguages/ironpython3/issues/2057")
     def test_cp35263(self):
         script = """
 import warnings