Various redemptions

pkg/compiler/lib/src/js_model/closure.dart

Index: pkg/compiler/lib/src/js_model/closure.dart
diff --git a/pkg/compiler/lib/src/js_model/closure.dart b/pkg/compiler/lib/src/js_model/closure.dart
index 153853ac9dc1b0c9b68e7d498e7b48d4c095e026..16cfea58c6bd51109c12b82fbe8312d233aaf629 100644
--- a/pkg/compiler/lib/src/js_model/closure.dart
+++ b/pkg/compiler/lib/src/js_model/closure.dart
@@ -509,6 +509,12 @@ class ClosureFieldData extends ClosureMemberData implements FieldData {
   ClosureFieldData(MemberDefinition definition) : super(definition);
 
   @override
+  DartType getFieldType(KernelToElementMap elementMap) {
+    // A closure field doesn't have a Dart type.
+    return null;
+  }
+
+  @override
   ConstantExpression getFieldConstant(
       KernelToElementMap elementMap, FieldEntity field) {
     failedAt(