Fixed #29: Parsers: Implement parsing memoization

Fixed #77 : Parser: ShortTermMemoryParser should be called separately
Fixed #78 : Remove VariableNode usage
Fixed #79 : ConceptManager: Implement compile caching
Fixed #80 : SheerkaExecute : parsers_key is not correctly computed
Fixed #81 : ValidateConceptEvaluator : Validate concept's where and pre clauses right after the parsing
Fixed #82 : SheerkaIsAManager: isa() failed when the set as a body
Fixed #83 : ValidateConceptEvaluator : Support BNF and SYA Concepts
Fixed #84 : ExpressionParser: Implement the parser as a standard parser
Fixed #85 : Services: Give order to services
Fixed #86 : cannot manage smart_get_attr(the short, color)

tests/parsers/test_UnrecognizedNodeParser.py

@@ -363,7 +363,7 @@ class TestUnrecognizedNodeParser(TestUsingMemoryBasedSheerka):
         assert parser_result.source == expression
         assert len(actual_nodes) == 1
         assert actual_nodes[0].nodes[
-            0].concept.get_metadata().is_evaluated  # 'a plus b' is recognized as concept definition
+            0].concept.get_hints().is_evaluated  # 'a plus b' is recognized as concept definition
 
     def test_i_can_parse_unrecognized_source_code_with_concept_node_when_var_in_short_term_memory(self):
         sheerka, context, parser = self.init_parser()
@@ -373,7 +373,7 @@ class TestUnrecognizedNodeParser(TestUsingMemoryBasedSheerka):
         nodes = get_input_nodes_from(concepts_map, expression, source_code_concepts)
         parser_input = ParserResultConcept("parsers.xxx", source=expression, value=nodes)
 
-        context.add_to_short_term_memory("a", 1)
+        context.add_to_short_term_memory("a", 1)  # -> a plus b is now an instance of the concept
         res = parser.parse(context, parser_input)
         parser_result = res.body
         actual_nodes = res.body.body
@@ -382,7 +382,7 @@ class TestUnrecognizedNodeParser(TestUsingMemoryBasedSheerka):
         assert sheerka.isinstance(parser_result, BuiltinConcepts.PARSER_RESULT)
         assert parser_result.source == expression
         assert len(actual_nodes) == 1
-        assert not actual_nodes[0].nodes[0].concept.get_metadata().is_evaluated  # 'a plus b' need to be evaluated
+        assert not actual_nodes[0].nodes[0].concept.get_hints().is_evaluated  # 'a plus b' need to be evaluated
 
     def test_i_can_parse_unrecognized_sya_concept_that_references_source_code(self):
         sheerka, context, parser = self.init_parser()