Add typedef support to summary linker.

pkg/analyzer/test/src/summary/linker_test.dart

 // Copyright (c) 2016, 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.
 
 import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/src/summary/format.dart';
 import 'package:analyzer/src/summary/link.dart';
 import 'package:unittest/unittest.dart';
 
 import '../../reflective_tests.dart';
@@ skipping 569 matching lines @@
     expect(gTypeElement.implicitFunctionTypeIndices, [1]);
     ParameterElementForLink h = gTypeElement.parameters[3];
     FunctionType hType = h.type;
     FunctionElementForLink_FunctionTypedParam hTypeElement = hType.element;
     expect(hTypeElement.implicitFunctionTypeIndices, [1, 3]);
   }
 
   void test_parameterParentElementForLink_innermostExecutable() {
     createLinker('void f(void g(void h())) {}');
     TopLevelFunctionElementForLink f = testLibrary.getContainedName('f');
-    expect(f.innermostExecutable, same(f));
+    expect(f.typeParameterContext, same(f));
     ParameterElementForLink g = f.parameters[0];
     FunctionType gType = g.type;
     FunctionElementForLink_FunctionTypedParam gTypeElement = gType.element;
-    expect(gTypeElement.innermostExecutable, same(f));
+    expect(gTypeElement.typeParameterContext, same(f));
     ParameterElementForLink h = gTypeElement.parameters[0];
     FunctionType hType = h.type;
     FunctionElementForLink_FunctionTypedParam hTypeElement = hType.element;
-    expect(hTypeElement.innermostExecutable, same(f));
+    expect(hTypeElement.typeParameterContext, same(f));
   }
 }