anchor.diff:        'dart.assist.convert.bodyToExpression', 30, "Convert to expression body",
         associatedErrorCodes: <String>['prefer_expression_function_bodies']);
     static const CONVERT_INTO_FINAL_FIELD = const AssistKind(
  -      'dart.assist.convert.getterToFinalField', 30, "Convert to final field");
  +      'dart.assist.convert.getterToFinalField', 30, "Convert to final field",
  +      associatedErrorCodes: <String>['prefer_final_fields']);
     static const CONVERT_INTO_FOR_INDEX = const AssistKind(
         'dart.assist.convert.forEachToForIndex', 30, "Convert to for-index loop");
     static const CONVERT_INTO_GENERIC_FUNCTION_SYNTAX = const AssistKind(
  
positive.code:   static const JOIN_VARIABLE_DECLARATION = const AssistKind(
        'dart.assist.joinVariableDeclaration', 30, "Join variable declaration");
    static const REMOVE_TYPE_ANNOTATION = const AssistKind(
        'dart.assist.removeTypeAnnotation', 29, "Remove type annotation");
    static const REPLACE_CONDITIONAL_WITH_IF_ELSE = const AssistKind(
        'dart.assist.convert.conditionalToIfElse',
        30,
  
negative.code:   static const CONVERT_DOCUMENTATION_INTO_LINE = const AssistKind(
        'dart.assist.convert.lineComment',
        30,
        "Convert to line documentation comment",
        associatedErrorCodes: <String>['slash_for_doc_comments']);
    static const CONVERT_INTO_ASYNC_BODY = const AssistKind(
        'dart.assist.convert.bodyToAsync', 30, "Convert to async function body");
    static const CONVERT_INTO_BLOCK_BODY = const AssistKind(
  