Require jsInteropObject type to be resolved before we use it in native behaviors

pkg/compiler/lib/src/native/behavior.dart

Index: pkg/compiler/lib/src/native/behavior.dart
diff --git a/pkg/compiler/lib/src/native/behavior.dart b/pkg/compiler/lib/src/native/behavior.dart
index 5a03ca015c54f41294b23cef3691e78d089dcba4..347dfcf82afc835ba5545234d018e2cfaeb1e90e 100644
--- a/pkg/compiler/lib/src/native/behavior.dart
+++ b/pkg/compiler/lib/src/native/behavior.dart
@@ -818,8 +818,9 @@ class NativeBehavior {
           // annotations. This means that to some degree we still use the return
           // type to decide whether to include native types, even if we don't
           // trust the type annotation.
-          typesInstantiated.add(
-              backend.helpers.jsJavaScriptObjectClass.thisType);
+          ClassElement cls = backend.helpers.jsJavaScriptObjectClass;
+          cls.ensureResolved(resolution);
+          typesInstantiated.add(cls.thisType);
         } else {
           // Otherwise, when the declared type is a Dart type, we do not
           // register an allocation because we assume it cannot be instantiated