Added first implementation of concepts ambiguity resolution + Jenkins file test

src/evaluators/PostExecutionEvaluator.py

@@ -0,0 +1,34 @@
+from core.builtin_concepts import BuiltinConcepts
+from core.concept import Concept
+from evaluators.BaseEvaluator import OneReturnValueEvaluator
+
+
+class PostExecutionEvaluator(OneReturnValueEvaluator):
+    """
+    Last chance to alter the return_value
+    This evaluator is supposed to be a generic evaluator for all rules that must be executed just before
+        the aggregations
+    """
+
+    NAME = "PostExecution"
+
+    def __init__(self):
+        super().__init__(self.NAME, [BuiltinConcepts.AFTER_EVALUATION], 90)
+
+    def matches(self, context, return_value):
+        evaluation_parents = context.get_parents(lambda c: c.action == BuiltinConcepts.PROCESSING)
+        if len(evaluation_parents) > 1:
+            return False  # It must be executed only when the top level context
+
+        # only support the rule for the COMMANDS
+        value = return_value.body
+        return isinstance(value, Concept) and context.sheerka.isa(value, context.sheerka.new(BuiltinConcepts.COMMAND))
+
+    def eval(self, context, return_value):
+        # only support the rule for the COMMANDS
+        body = return_value.body.body
+        return context.sheerka.ret(
+            self.name,
+            True,
+            body if body != BuiltinConcepts.NOT_INITIALIZED else return_value.body,
+            parents=[return_value])