anchor.diff:          // error • Message ... at path.dart:line:col • (code)
   
           var filePath = path.relative(error.file, from: dir.path);
  -        var severity = error.severity.toLowerCase().padLeft(7);
  +        var severity = error.severity.toLowerCase().padLeft(_severityWidth);
           if (error.isError) {
             severity = log.ansi.error(severity);
           }
  
positive.code: // TODO: Support enable-experiment for 'dart analyze'.
  
  class AnalyzeCommand extends DartdevCommand<int> {
    AnalyzeCommand() : super('analyze', "Analyze the project's Dart code.") {
      argParser
        ..addFlag('fatal-infos',
  
negative.code:         );
  
          if (verbose) {
            var padding = ' ' * _bodyIndentWidth;
            for (var message in error.contextMessages) {
              log.stdout('$padding${message.message} '
                  'at ${message.filePath}:${message.line}:${message.column}');
  