anchor.diff:              
         // Return null for close section.
         case TagType.closeSection:
  +      case TagType.comment:
           node = null;
           break;
   
  
positive.code:   static const TagType tripleMustache = const TagType('tripleMustache');
    static const TagType unescapedVariable = const TagType('unescapedVariable');
    static const TagType partial = const TagType('partial');
  }
  
  TagType tagTypeFromString(String s) => const {
            '#': TagType.openSection,
            '^': TagType.openInverseSection,
            '/': TagType.closeSection,
            '&': TagType.unescapedVariable,
            '>': TagType.partial
          }[s];
  
  class Parser {
    
  
negative.code:       case TagType.tripleMustache:
        case TagType.partial:
          if (node != null) _stack.last.children.add(node);
          break;
        
        case TagType.comment:
          // Ignore.
          break;
          
        //TODO soon will be able to omit this as the analyzer will warn if a case
  