Merge kernel closure conversion into the Dart SDK

pkg/kernel/lib/kernel.dart

Index: pkg/kernel/lib/kernel.dart
diff --git a/pkg/kernel/lib/kernel.dart b/pkg/kernel/lib/kernel.dart
index 123f84344e1d7f8bd8b8c54dba97bbd8f5c0fa1d..7675c9c6adefc2f248a085ffe675bb907f39604c 100644
--- a/pkg/kernel/lib/kernel.dart
+++ b/pkg/kernel/lib/kernel.dart
@@ -50,7 +50,8 @@ void writeLibraryToText(Library library, {String path}) {
   }
 }
 
-void writeProgramToText(Program program, {String path, bool showExternal: false}) {
+void writeProgramToText(Program program,
+    {String path, bool showExternal: false}) {
   StringBuffer buffer = new StringBuffer();
   new Printer(buffer, showExternal: showExternal).writeProgramFile(program);
   if (path == null) {