Add type inference for super method invocations.

pkg/front_end/testcases/inference/super_method_invocation.dart

Index: pkg/front_end/testcases/inference/super_method_invocation.dart
diff --git a/pkg/front_end/testcases/inference/super_method_invocation.dart b/pkg/front_end/testcases/inference/super_method_invocation.dart
new file mode 100644
index 0000000000000000000000000000000000000000..c81495fd8b22a9be7d83098bc04b86e89842a2e9
--- /dev/null
+++ b/pkg/front_end/testcases/inference/super_method_invocation.dart
@@ -0,0 +1,18 @@
+// 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.
+
+/*@testedFeatures=inference*/
+library test;
+
+class C {
+  int f() => 0;
+}
+
+class D extends C {
+  void g() {
+    var /*@type=int*/ x = super. /*@target=C::f*/ f();
+  }
+}
+
+main() {}