Register deserialized lazy statics.

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

Index: pkg/compiler/lib/src/js_backend/constant_handler_javascript.dart
diff --git a/pkg/compiler/lib/src/js_backend/constant_handler_javascript.dart b/pkg/compiler/lib/src/js_backend/constant_handler_javascript.dart
index da3efb5da069f94b0da1c6ec0462ab93b50783e3..36bd7685b5d775a19384dd664d992b539edb4680 100644
--- a/pkg/compiler/lib/src/js_backend/constant_handler_javascript.dart
+++ b/pkg/compiler/lib/src/js_backend/constant_handler_javascript.dart
@@ -132,11 +132,16 @@ class JavaScriptConstantCompiler extends ConstantCompilerBase
         element, definitions,
         isConst: isConst, checkType: checkType);
     if (!isConst && value == null) {
-      lazyStatics.add(element);
+      registerLazyStatic(element);
     }
     return value;
   }
 
+  @override
+  void registerLazyStatic(FieldElement element) {
+    lazyStatics.add(element);
+  }
+
   void addCompileTimeConstantForEmission(ConstantValue constant) {
     compiledConstants.add(constant);
   }