Add a couple of workarounds for issues caused by current dart2js patch

pkg/dartdoc/mirrors/dart2js_mirror.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('mirrors.dart2js');
 
 #import('../../../lib/compiler/compiler.dart', prefix: 'diagnostics');
 #import('../../../lib/compiler/implementation/elements/elements.dart');
 #import('../../../lib/compiler/implementation/apiimpl.dart', prefix: 'api');
 #import('../../../lib/compiler/implementation/scanner/scannerlib.dart');
@@ skipping 226 matching lines @@
     backend.processNativeClasses(world, libraries.getValues());
     for (var library in elements) {
       library.localMembers.forEach((element) {
         world.addToWorkList(element);
       });
     }
     progress.reset();
     world.forEach((WorkItem work) {
       withCurrentElement(work.element, () => work.run(this, world));
     });
-    //world.queueIsClosed = true;
-    assert(world.checkNoEnqueuedInvokedInstanceMethods());
   }
 
   String codegen(WorkItem work, Enqueuer world) {
     return null;
   }
 }
 
 // TODO(johnniwinther): The source for the apidoc includes calls to methods on
 // for instance [MathPrimitives] which are not resolved by dart2js. Since we
 // do not need to analyse the body of functions to produce the documenation
@@ skipping 1042 matching lines @@
   bool get isSetter() => _kind == Dart2JsMethodKind.SETTER;
 
   bool get isOperator() => _kind == Dart2JsMethodKind.OPERATOR;
 
   String get operatorName() => _operatorName;
 
   Location get location() {
     var node = _function.parseNode(_diagnosticListener);
     if (node !== null) {
       var script = _function.getCompilationUnit().script;
+      if (_function.isPatched) {
+        // TODO(ager): This should not be necessary when patch
+        // support has been reworked.
+        script = _function.patch.getCompilationUnit().script;
+      }
       var span = system.compiler.spanFromNode(node, script.uri);
       return new Dart2JsLocation(script, span);
     }
     return super.location;
   }
 
 }
 
 class Dart2JsFieldMirror extends Dart2JsElementMirror
     implements Dart2JsMemberMirror, FieldMirror {
@@ skipping 37 matching lines @@
     if (node !== null) {
       var span = system.compiler.spanFromNode(node, script.uri);
       return new Dart2JsLocation(script, span);
     } else {
       var span = system.compiler.spanFromElement(_variable);
       return new Dart2JsLocation(script, span);
     }
   }
 }