Fix deferred loading with multiple apps on same page.

sdk/lib/_internal/compiler/js_lib/shared/embedded_names.dart

Index: sdk/lib/_internal/compiler/js_lib/shared/embedded_names.dart
diff --git a/sdk/lib/_internal/compiler/js_lib/shared/embedded_names.dart b/sdk/lib/_internal/compiler/js_lib/shared/embedded_names.dart
index 344cd7d24eec254fb0b95d22f37b7243333d0452..a3a8dff073d1cfc91036b1f9c805e77991a3263d 100644
--- a/sdk/lib/_internal/compiler/js_lib/shared/embedded_names.dart
+++ b/sdk/lib/_internal/compiler/js_lib/shared/embedded_names.dart
@@ -32,6 +32,7 @@ const DEFERRED_LIBRARY_URIS = 'deferredLibraryUris';
 const DEFERRED_LIBRARY_HASHES = 'deferredLibraryHashes';
 const INITIALIZE_LOADED_HUNK = 'initializeLoadedHunk';
 const IS_HUNK_LOADED = 'isHunkLoaded';
+const IS_HUNK_INITIALIZED = 'isHunkInitialized';
 const CLASS_ID_EXTRACTOR = 'classIdExtractor';
 const CLASS_FIELDS_EXTRACTOR = 'classFieldsExtractor';
 const INSTANCE_FROM_CLASS_ID = "instanceFromClassId";