Move native and js interop properties from the element model to the JS backend

pkg/compiler/lib/src/patch_parser.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.
 
 /**
  * This library contains the infrastructure to parse and integrate patch files.
  *
  * Three types of elements can be patched: [LibraryElement], [ClassElement],
  * [FunctionElement]. Patches are introduced in patch libraries which are loaded
  * together with the corresponding origin library. Which libraries that are
@@ skipping 215 matching lines @@
       assert(listener.nodes.isEmpty);
     }));
   }
 }
 
 class PatchMemberListener extends MemberListener {
   final Compiler compiler;
 
   PatchMemberListener(Compiler compiler, ClassElement enclosingClass)
       : this.compiler = compiler,
-        super(compiler.reporter, enclosingClass);
+        super(compiler.parsing.getScannerOptionsFor(enclosingClass),
+              compiler.reporter,
+              enclosingClass);
 
   @override
   void addMember(Element patch) {
     addMetadata(patch);
 
     PatchVersion patchVersion = getPatchVersion(compiler, patch);
     if (patchVersion != null) {
       if (patchVersion.isActive(compiler.patchVersion)) {
         Element origin = enclosingClass.origin.localLookup(patch.name);
         patchElement(compiler, reporter, origin, patch);
@@ skipping 20 matching lines @@
 /**
  * Extension of [ElementListener] for parsing patch files.
  */
 class PatchElementListener extends ElementListener implements Listener {
   final Compiler compiler;
 
   PatchElementListener(Compiler compiler,
                        CompilationUnitElement patchElement,
                        int idGenerator())
     : this.compiler = compiler,
-      super(compiler.reporter, patchElement, idGenerator);
+      super(compiler.parsing.getScannerOptionsFor(patchElement),
+            compiler.reporter, patchElement, idGenerator);
 
   @override
   void pushElement(Element patch) {
     popMetadata(patch);
 
     PatchVersion patchVersion = getPatchVersion(compiler, patch);
     if (patchVersion != null) {
       if (patchVersion.isActive(compiler.patchVersion)) {
         LibraryElement originLibrary = compilationUnitElement.library;
         assert(originLibrary.isPatched);
@@ skipping 150 matching lines @@
     }
     return null;
   }
 
   String apply(Compiler compiler,
              Element element,
              MetadataAnnotation annotation) {
     if (element.isClass) {
       String native = getNativeAnnotation(annotation);
       if (native != null) {
-        ClassElementX declaration = element.declaration;
-        declaration.setNative(native);
+        JavaScriptBackend backend = compiler.backend;
+        backend.setNativeClassTagInfo(element, native);
         return native;
       }
     }
     return null;
   }
 
   void validate(Compiler compiler,
                 Element element,
                 MetadataAnnotation annotation,
                 ConstantValue constant) {
@@ skipping 11 matching lines @@
   const JsInteropAnnotationHandler();
 
   bool hasJsNameAnnotation(MetadataAnnotation annotation) =>
       annotation.beginToken != null && annotation.beginToken.next.value == 'Js';
 
   bool apply(Compiler compiler,
              Element element,
              MetadataAnnotation annotation) {
     bool hasJsInterop = hasJsNameAnnotation(annotation);
     if (hasJsInterop) {
-      element.markAsJsInterop();
+      JavaScriptBackend backend = compiler.backend;
+      backend.markAsJsInterop(element);
     }
     // Due to semantics of apply in the baseclass we have to return null to
     // indicate that no match was found.
     return hasJsInterop ? true : null;
   }
 
   @override
   void validate(Compiler compiler,
                 Element element,
                 MetadataAnnotation annotation,
@@ skipping 186 matching lines @@
 
 class PatchVersion {
   final String tag;
 
   const PatchVersion(this.tag);
 
   bool isActive(String patchTag) => tag == null || tag == patchTag;
 
   String toString() => 'PatchVersion($tag)';
 }