Run dartfmt on remaining unformated pkg packages

pkg/testing/lib/src/test_root.dart

Index: pkg/testing/lib/src/test_root.dart
diff --git a/pkg/testing/lib/src/test_root.dart b/pkg/testing/lib/src/test_root.dart
index 4729de526d57dff3b22f7b35c1d062f9e8dcd90d..795d285fd44a6e6ef6cf4c4f345291adf6ee8214 100644
--- a/pkg/testing/lib/src/test_root.dart
+++ b/pkg/testing/lib/src/test_root.dart
@@ -4,24 +4,17 @@
 
 library testing.test_root;
 
-import 'dart:async' show
-    Future;
+import 'dart:async' show Future;
 
-import 'dart:convert' show
-    JSON;
+import 'dart:convert' show JSON;
 
-import 'dart:io' show
-    File;
+import 'dart:io' show File;
 
-import '../testing.dart' show
-    Chain;
+import '../testing.dart' show Chain;
 
-import 'analyze.dart' show
-    Analyze;
+import 'analyze.dart' show Analyze;
 
-import 'suite.dart' show
-    Dart,
-    Suite;
+import 'suite.dart' show Dart, Suite;
 
 /// Records properties of a test root. The information is read from a JSON file.
 ///
@@ -63,13 +56,11 @@ class TestRoot {
   List<RegExp> get excludedFromAnalysis => analyze.exclude;
 
   Iterable<Dart> get dartSuites {
-    return new List<Dart>.from(
-        suites.where((Suite suite) => suite is Dart));
+    return new List<Dart>.from(suites.where((Suite suite) => suite is Dart));
   }
 
   Iterable<Chain> get toolChains {
-    return new List<Chain>.from(
-        suites.where((Suite suite) => suite is Chain));
+    return new List<Chain>.from(suites.where((Suite suite) => suite is Chain));
   }
 
   String toString() {