Prepare for handling super noSuchMethod

tests/compiler/dart2js/kernel/getters_setters_test.dart

Index: tests/compiler/dart2js/kernel/getters_setters_test.dart
diff --git a/tests/compiler/dart2js/kernel/getters_setters_test.dart b/tests/compiler/dart2js/kernel/getters_setters_test.dart
index 01590a6229a782e1b9413dd06fe8395f3b70eb8d..bf19fe08514922cbda37b7da99f1f7fb3e440f0f 100644
--- a/tests/compiler/dart2js/kernel/getters_setters_test.dart
+++ b/tests/compiler/dart2js/kernel/getters_setters_test.dart
@@ -118,6 +118,10 @@ class B extends A {
 main() {
   new B().bar();
 }''';
-    return check(code, useKernelInSsa: true);
+    return check(code,
+        // TODO(johnniwinther): Remove this when
+        // `KernelClosureConversionTask.getClosureInfoForMember` doesn't fail
+        // on the closure in `Maps.mapToString`.
+        useKernelInSsa: true);
   });
 }