Create `loadLibrary` function element eagerly.

pkg/analyzer/lib/src/task/dart.dart

 // Copyright (c) 2015, 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 analyzer.src.task.dart;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/generated/ast.dart';
@@ skipping 3765 matching lines @@
  * An artifitial task that does nothing except to force type names resolution
  * for the defining and part units of a library.
  */
 class ResolveLibraryTypeNamesTask extends SourceBasedAnalysisTask {
   /**
    * The name of the [LIBRARY_ELEMENT4] input.
    */
   static const String LIBRARY_INPUT = 'LIBRARY_INPUT';
 
   /**
+   * The name of the [TYPE_PROVIDER] input.
+   */
+  static const String TYPE_PROVIDER_INPUT = 'TYPE_PROVIDER_INPUT';
+
+  /**
    * The task descriptor describing this kind of task.
    */
   static final TaskDescriptor DESCRIPTOR = new TaskDescriptor(
       'ResolveLibraryTypeNamesTask',
       createTask,
       buildInputs,
       <ResultDescriptor>[LIBRARY_ELEMENT5]);
 
   ResolveLibraryTypeNamesTask(
       InternalAnalysisContext context, AnalysisTarget target)
       : super(context, target);
 
   @override
   TaskDescriptor get descriptor => DESCRIPTOR;
 
   @override
   void internalPerform() {
+    //
+    // Prepare inputs.
+    //
     LibraryElement library = getRequiredInput(LIBRARY_INPUT);
+    TypeProvider typeProvider = getRequiredInput(TYPE_PROVIDER_INPUT);
+    //
+    // Create the synthetic element for `loadLibrary`.
+    //
+    (library as LibraryElementImpl).createLoadLibraryFunction(typeProvider);
+    //
+    // Record outputs.
+    //
     outputs[LIBRARY_ELEMENT5] = library;
   }
 
   /**
    * Return a map from the names of the inputs of this kind of task to the task
    * input descriptors describing those inputs for a task with the
    * given [target].
    */
   static Map<String, TaskInput> buildInputs(AnalysisTarget target) {
     Source source = target;
     return <String, TaskInput>{
       'resolvedUnit': UNITS.of(source).toList((Source unit) =>
           RESOLVED_UNIT3.of(new LibrarySpecificUnit(source, unit))),
-      LIBRARY_INPUT: LIBRARY_ELEMENT4.of(source)
+      LIBRARY_INPUT: LIBRARY_ELEMENT4.of(source),
+      TYPE_PROVIDER_INPUT: TYPE_PROVIDER.of(AnalysisContextTarget.request)
     };
   }
 
   /**
    * Create a [ResolveLibraryTypeNamesTask] based on the given [target] in
    * the given [context].
    */
   static ResolveLibraryTypeNamesTask createTask(
       AnalysisContext context, AnalysisTarget target) {
     return new ResolveLibraryTypeNamesTask(context, target);
@@ skipping 700 matching lines @@
 
   @override
   bool moveNext() {
     if (_newSources.isEmpty) {
       return false;
     }
     currentTarget = _newSources.removeLast();
     return true;
   }
 }