Remove element from DynamicType.

sdk/lib/_internal/compiler/implementation/dart_backend/backend.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.
 
 part of dart_backend;
 
 // TODO(ahe): This class is simply wrong.  This backend should use
 // elements when it can, not AST nodes.  Perhaps a [Map<Element,
 // TreeElements>] is what is needed.
 class ElementAst {
@@ skipping 456 matching lines @@
         mirrorHelperLibrary = element;
         mirrorHelperGetNameFunction = mirrorHelperLibrary.find(
             MirrorRenamer.MIRROR_HELPER_GET_NAME_FUNCTION);
         mirrorHelperSymbolsMap = mirrorHelperLibrary.find(
             MirrorRenamer.MIRROR_HELPER_SYMBOLS_MAP_NAME);
       });
     }
     return new Future.value();
   }
 
-  void registerTypeLiteral(Element element,
+  void registerTypeLiteral(DartType type,
                            Enqueuer enqueuer,
                            Registry registry) {
-    if (element.isClass) {
-      usedTypeLiterals.add(element);
+    if (type.isInterfaceType) {
+      usedTypeLiterals.add(type.element);
     }
   }
 
   void registerStaticSend(Element element, Node node) {
     if (useMirrorHelperLibrary) {
       mirrorRenamer.registerStaticSend(element, node);
     }
   }
 
   void registerMirrorHelperElement(Element element, Node node) {
@@ skipping 61 matching lines @@
 
   visitNode(Node node) {
     node.visitChildren(this);
   }
 
   visitTypeAnnotation(TypeAnnotation typeAnnotation) {
     TreeElements treeElements = elementAst.treeElements;
     final DartType type = treeElements.getType(typeAnnotation);
     assert(invariant(typeAnnotation, type != null,
         message: "Missing type for type annotation: $treeElements."));
-    if (type.kind == TypeKind.TYPEDEF) newTypedefElementCallback(type.element);
-    if (type.kind == TypeKind.INTERFACE) newClassElementCallback(type.element);
+    if (type.isTypedef) newTypedefElementCallback(type.element);
+    if (type.isInterfaceType) newClassElementCallback(type.element);
     typeAnnotation.visitChildren(this);
   }
 
   void collect() {
     compiler.withCurrentElement(element, () {
       elementAst.ast.accept(this);
     });
   }
 }
 
@@ skipping 59 matching lines @@
   }
 
   Constant compileMetadata(MetadataAnnotation metadata,
                            Node node,
                            TreeElements elements) {
     return measure(() {
       return constantCompiler.compileMetadata(metadata, node, elements);
     });
   }
 }