Revert "Remove Registry from registerMetadataConstant" and "Serialize metadata"

pkg/compiler/lib/src/common/backend_api.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library dart2js.backend_api;
 
 import 'dart:async' show Future;
 
 import '../common.dart';
 import '../common/codegen.dart' show CodegenImpact;
@@ skipping 113 matching lines @@
   /// supported by the backend.
   bool enableCodegenWithErrorsIfSupported(Spannable node);
 
   /// Enable deferred loading. Returns `true` if the backend supports deferred
   /// loading.
   bool enableDeferredLoadingIfSupported(Spannable node, Registry registry);
 
   /// Called during codegen when [constant] has been used.
   void registerCompileTimeConstant(ConstantValue constant, Registry registry) {}
 
+  /// Called during resolution when a constant value for [metadata] on
+  /// [annotatedElement] has been evaluated.
+  void registerMetadataConstant(MetadataAnnotation metadata,
+      Element annotatedElement, Registry registry) {}
+
   /// Called to notify to the backend that a class is being instantiated.
   // TODO(johnniwinther): Remove this. It's only called once for each [cls] and
   // only with [Compiler.globalDependencies] as [registry].
   void registerInstantiatedClass(
       ClassElement cls, Enqueuer enqueuer, Registry registry) {}
 
   /// Called to notify to the backend that a class is implemented by an
   /// instantiated class.
   void registerImplementedClass(
       ClassElement cls, Enqueuer enqueuer, Registry registry) {}
@@ skipping 122 matching lines @@
   void registerStaticUse(Element element, Enqueuer enqueuer) {}
 
   /// This method is called immediately after the [LibraryElement] [library] has
   /// been created.
   void onLibraryCreated(LibraryElement library) {}
 
   /// This method is called immediately after the [library] and its parts have
   /// been scanned.
   Future onLibraryScanned(LibraryElement library, LibraryLoader loader) {
     // TODO(johnniwinther): Move this to [JavaScriptBackend].
-    if (!compiler.serialization.isDeserialized(library)) {
-      if (canLibraryUseNative(library)) {
-        library.forEachLocalMember((Element element) {
-          if (element.isClass) {
-            checkNativeAnnotation(compiler, element);
-          }
-        });
-      }
-      checkJsInteropAnnotation(compiler, library);
+    if (canLibraryUseNative(library)) {
       library.forEachLocalMember((Element element) {
-        checkJsInteropAnnotation(compiler, element);
-        if (element.isClass && isJsInterop(element)) {
-          ClassElement classElement = element;
-          classElement.forEachMember((_, memberElement) {
-            checkJsInteropAnnotation(compiler, memberElement);
-          });
+        if (element.isClass) {
+          checkNativeAnnotation(compiler, element);
         }
       });
     }
+    checkJsInteropAnnotation(compiler, library);
+    library.forEachLocalMember((Element element) {
+      checkJsInteropAnnotation(compiler, element);
+      if (element.isClass && isJsInterop(element)) {
+        ClassElement classElement = element;
+        classElement.forEachMember((_, memberElement) {
+          checkJsInteropAnnotation(compiler, memberElement);
+        });
+      }
+    });
     return new Future.value();
   }
 
   /// This method is called when all new libraries loaded through
   /// [LibraryLoader.loadLibrary] has been loaded and their imports/exports
   /// have been computed.
   Future onLibrariesLoaded(LoadedLibraries loadedLibraries) {
     return new Future.value();
   }
 
@@ skipping 130 matching lines @@
   }
 }
 
 /// Interface for serialization of backend specific data.
 class BackendSerialization {
   const BackendSerialization();
 
   SerializerPlugin get serializer => const SerializerPlugin();
   DeserializerPlugin get deserializer => const DeserializerPlugin();
 }