Handle deserialized compilation of closures

pkg/compiler/lib/src/elements/modelx.dart

 // Copyright (c) 2013, 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 elements.modelx;
 
 import '../common.dart';
 import '../common/resolution.dart' show Resolution, ParsingContext;
 import '../compiler.dart' show Compiler;
 import '../constants/constant_constructors.dart';
@@ skipping 133 matching lines @@
     while (!element.isCompilationUnit) {
       element = element.enclosingElement;
     }
     return element;
   }
 
   LibraryElement get library => enclosingElement.library;
 
   Name get memberName => new Name(name, library);
 
-  LibraryElementX get implementationLibrary {
+  LibraryElement get implementationLibrary {
     Element element = this;
     while (!identical(element.kind, ElementKind.LIBRARY)) {
       element = element.enclosingElement;
     }
     return element;
   }
 
   ClassElement get enclosingClass {
     for (Element e = this; e != null; e = e.enclosingElement) {
       if (e.isClass) return e;
@@ skipping 544 matching lines @@
 
   void forEachLocalMember(f(Element element)) {
     localMembers.forEach(f);
   }
 
   void addMember(Element element, DiagnosticReporter reporter) {
     // Keep a list of top level members.
     localMembers = localMembers.prepend(element);
     // Provide the member to the library to build scope.
     if (enclosingElement.isPatch) {
-      implementationLibrary.addMember(element, reporter);
+      LibraryElementX library = implementationLibrary;
+      library.addMember(element, reporter);
     } else {
       library.addMember(element, reporter);
     }
   }
 
   void setPartOf(PartOf tag, DiagnosticReporter reporter) {
     LibraryElementX library = enclosingElement;
     if (library.entryCompilationUnit == this) {
       // This compilation unit is loaded as a library. The error is reported by
       // the library loader.
@@ skipping 2515 matching lines @@
     if (definingElement.isField) {
       FieldElement field = definingElement;
       body = field.initializer;
     } else if (node != null && node.asFunctionExpression() != null) {
       body = node.asFunctionExpression().body;
     }
     return new ParsedResolvedAst(
         declaration, node, body, definingElement.treeElements);
   }
 }