Implement type variables on local function declarations and expressions.

pkg/front_end/testcases/illegal_named_function_expression.dart

Index: pkg/front_end/testcases/illegal_named_function_expression.dart
diff --git a/pkg/front_end/testcases/illegal_named_function_expression.dart b/pkg/front_end/testcases/illegal_named_function_expression.dart
new file mode 100644
index 0000000000000000000000000000000000000000..ac09db3e2f7436f73c9f20f6f0edc758648ec882
--- /dev/null
+++ b/pkg/front_end/testcases/illegal_named_function_expression.dart
@@ -0,0 +1,9 @@
+// Copyright (c) 2017, 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.
+
+main() {
+  var x = void f<T>(T t) {};
+  print(x.runtimeType);
+  print(void g<T>(T t) {});
+}