Fixed #3: Added sheerka.resolve_rule()

Fixed #5: Refactored SheerkaComparisonManager
Fixed #6: Sya parser no longer works after restart

tests/non_reg/test_sheerka_display.py

@@ -87,4 +87,21 @@ ReturnValue(who=evaluators.Concept, status=True, value=(1002)foo)
 test 1
 #unit_test#
 __default__
+"""
+
+    def test_i_can_display_objects_in_memory(self, capsys):
+        init = [
+            "def concept one as 1",
+            "def concept two as 2",
+            "one",
+            "two"
+        ]
+        sheerka = self.init_scenario(init)
+        capsys.readouterr()
+
+        sheerka.enable_process_return_values = True
+        sheerka.evaluate_user_input("in_memory()")
+        captured = capsys.readouterr()
+        assert captured.out == """one: (1001)one
+two: (1002)two
 """