Refactoring to prepare for kernel based jump targets

pkg/compiler/lib/src/js_backend/checked_mode_helpers.dart

Index: pkg/compiler/lib/src/js_backend/checked_mode_helpers.dart
diff --git a/pkg/compiler/lib/src/js_backend/checked_mode_helpers.dart b/pkg/compiler/lib/src/js_backend/checked_mode_helpers.dart
index ba2ddd64cbdd39a67048d634698fc47bf3c13a1c..00df407f57b5d213664ce5911772729799d7c5f3 100644
--- a/pkg/compiler/lib/src/js_backend/checked_mode_helpers.dart
+++ b/pkg/compiler/lib/src/js_backend/checked_mode_helpers.dart
@@ -43,7 +43,7 @@ class MalformedCheckedModeHelper extends CheckedModeHelper {
 
   void generateAdditionalArguments(SsaCodeGenerator codegen, Namer namer,
       HTypeConversion node, List<jsAst.Expression> arguments) {
-    // TODO(johnniwinther): Support malformed types in [types.dart].
+    // TODO(redemption): Support malformed types in [types.dart].
     MalformedType type = node.typeExpression;
     ErroneousElement element = type.element;
     arguments.add(js.escapedString(element.message));