The formatter struggles a bit with these files.

runtime/tests/vm/dart/data_uri_import_test.dart

Index: runtime/tests/vm/dart/data_uri_import_test.dart
diff --git a/runtime/tests/vm/dart/data_uri_import_test.dart b/runtime/tests/vm/dart/data_uri_import_test.dart
index 8ce4e1adb697c1ed2cf595110d9667a740e1b60d..cbeb3e5580c1fb591b0f91f2d1848d15d05d0759 100644
--- a/runtime/tests/vm/dart/data_uri_import_test.dart
+++ b/runtime/tests/vm/dart/data_uri_import_test.dart
@@ -3,16 +3,16 @@
 // BSD-style license that can be found in the LICENSE file.
 
 // foo() => 42;
-import 'data:application/dart;charset=utf-8,foo%28%29%20%3D%3E%2042%3B';  /// percentencoded: ok
-import 'data:text/plain;charset=utf-8,foo%28%29%20%3D%3E%2042%3B';  /// wrongmime: ok
-import 'data:;charset=utf-8,foo%28%29%20%3D%3E%2042%3B';  /// nomime: ok
-import 'data:application/dart;charset=utf-16,foo%28%29%20%3D%3E%2042%3B';  /// utf16: runtime error
-import 'data:application/dart,foo%28%29%20%3D%3E%2042%3B';  /// nocharset: ok
-import 'data:application/dart;charset=utf-8,foo?%9g';  /// badencodeddate: runtime error
-import 'data:application/dart;charset=utf-8;base64,Zm9vKCkgPT4gNDI7';  /// base64: ok
+import 'data:application/dart;charset=utf-8,foo%28%29%20%3D%3E%2042%3B'; // percentencoded: ok

[Cutch, 2017/03/20 23:02:33]

pretty sure this was a multi-test

+import 'data:text/plain;charset=utf-8,foo%28%29%20%3D%3E%2042%3B'; // wrongmime: ok
+import 'data:;charset=utf-8,foo%28%29%20%3D%3E%2042%3B'; // nomime: ok
+import 'data:application/dart;charset=utf-16,foo%28%29%20%3D%3E%2042%3B'; // utf16: runtime error
+import 'data:application/dart,foo%28%29%20%3D%3E%2042%3B'; // nocharset: ok
+import 'data:application/dart;charset=utf-8,foo?%9g'; // badencodeddate: runtime error
+import 'data:application/dart;charset=utf-8;base64,Zm9vKCkgPT4gNDI7'; // base64: ok
 
 import "package:expect/expect.dart";
 
 main() {
   Expect.equals(42, foo());
-}
+}