Run formatter on the analyzer.

pkg/analyzer_cli/tool/perf.dart

Index: pkg/analyzer_cli/tool/perf.dart
diff --git a/pkg/analyzer_cli/tool/perf.dart b/pkg/analyzer_cli/tool/perf.dart
index 40a747ab1e27e473bb416b1f1b48c6ff7dc63293..5c5a24302cc08e10db2043a19219421f6b6ab504 100644
--- a/pkg/analyzer_cli/tool/perf.dart
+++ b/pkg/analyzer_cli/tool/perf.dart
@@ -187,7 +187,8 @@ Token tokenize(Source source) {
   // TODO(sigmund): is there a way to scan from a random-access-file without
   // first converting to String?
   var scanner = new Scanner(source, new CharSequenceReader(contents),
-      AnalysisErrorListener.NULL_LISTENER)..preserveComments = false;
+      AnalysisErrorListener.NULL_LISTENER)
+    ..preserveComments = false;
   var token = scanner.tokenize();
   scanTimer.stop();
   return token;