Introduce code to generate summaries from an element model.

pkg/analyzer/test/generated/resolver_test.dart

 // Copyright (c) 2014, 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 engine.resolver_test;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/context/context.dart' as newContext;
 import 'package:analyzer/src/generated/ast.dart';
@@ skipping 240 matching lines @@
               <TypeDefiningElement>[streamElement.typeParameters[0]], null)
           .type,
     ];
     // TODO(brianwilkerson) This is missing the optional parameters.
     MethodElementImpl listenMethod =
         ElementFactory.methodElement('listen', returnType, parameterTypes);
     (listenMethod.type as FunctionTypeImpl).typeArguments =
         streamElement.type.typeArguments;
     (parameterTypes[0] as FunctionTypeImpl).typeArguments =
         streamElement.type.typeArguments;
-    (parameterTypes[0].element as FunctionElementImpl)
-        .enclosingElement = listenMethod;
+    (parameterTypes[0].element as FunctionElementImpl).enclosingElement =
+        listenMethod;
     streamElement.methods = <MethodElement>[listenMethod];
 
     asyncUnit.types = <ClassElement>[
       completerElement,
       futureElement,
       streamElement
     ];
     LibraryElementImpl asyncLibrary = new LibraryElementImpl.forNode(
         coreContext, AstFactory.libraryIdentifier2(["dart", "async"]));
     asyncLibrary.definingCompilationUnit = asyncUnit;
@@ skipping 14850 matching lines @@
 
   void _resolveTestUnit(String code) {
     testCode = code;
     testSource = addSource(testCode);
     LibraryElement library = resolve2(testSource);
     assertNoErrors(testSource);
     verify([testSource]);
     testUnit = resolveCompilationUnit(testSource, library);
   }
 }