Move registering of interceptors to the JsBackend.

lib/compiler/implementation/resolver.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.
 
 abstract class TreeElements {
   Element operator[](Node node);
   Selector getSelector(Send send);
   DartType getType(TypeAnnotation annotation);
   bool isParameterChecked(Element element);
 }
@@ skipping 1701 matching lines @@
       }
     } else if (Elements.isStaticOrTopLevel(target)) {
       // TODO(kasperl): It seems like we're not supposed to register
       // the use of classes. Wouldn't it be simpler if we just did?
       if (!target.isClass()) {
         // [target] might be the implementation element and only declaration
         // elements may be registered.
         world.registerStaticUse(target.declaration);
       }
     }
-
     if (target == null) {
       // If we haven't found an element for this send, it might be a
-      // dynamic send on a primitive value. If there is an interceptor
-      // for that send, register it.
-      var interceptor =
-          new Interceptors(compiler).getStaticInterceptorBySelector(selector);
-      if (interceptor !== null) {
-        world.registerStaticUse(interceptor);
-      }
+      // dynamic send on a primitive value. Register the selector with
+      // the world to add an interceptor, if necessary.
+      world.registerUsedSelector(selector);
     }
   }
 
   visitLiteralInt(LiteralInt node) {
   }
 
   visitLiteralDouble(LiteralDouble node) {
   }
 
   visitLiteralBool(LiteralBool node) {
@@ skipping 1395 matching lines @@
     return result;
   }
   Element lookup(SourceString name) => localLookup(name);
   Element lexicalLookup(SourceString name) => localLookup(name);
 
   Element add(Element newElement) {
     throw "Cannot add an element in a patch library scope";
   }
   String toString() => 'PatchLibraryScope($origin,$patch)';
 }