syntaxtree.py: simplification of result.setter of Node-object

DHParser/syntaxtree.py

@@ -192,7 +192,7 @@ class Node:
         that generated the node and the parser's result.
         """
         # self._result = ''  # type: StrictResultType
-        # self._children = ()  # type: ChildrenType
+        # self.children = ()  # type: ChildrenType
         self._errors = []  # type: List[str]
         self.result = result
         self._len = len(result) if not self.children else \
@@ -250,12 +250,7 @@ class Node:
         self._result = (result,) if isinstance(result, Node) else result or ''  # type: StrictResultType
         self.children = cast(ChildrenType, self._result) \
             if isinstance(self._result, tuple) else cast(ChildrenType, ())  # type: ChildrenType
-        self.error_flag = any(r.error_flag for r in self.children) \
-            if self.children else False  # type: bool
-
-    # @property
-    # def children(self) -> ChildrenType:
-    #     return self._children
+        self.error_flag = any(r.error_flag for r in self.children)  # type: bool
 
 
     @property