Generated front_end/testcases/inference test files from Analyzer tests.

pkg/front_end/testcases/inference/future_or_subtyping.dart

Index: pkg/front_end/testcases/inference/future_or_subtyping.dart
diff --git a/pkg/front_end/testcases/inference/future_or_subtyping.dart b/pkg/front_end/testcases/inference/future_or_subtyping.dart
new file mode 100644
index 0000000000000000000000000000000000000000..349251b0b1225a0aa256062ddb5052af1505379e
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+++ b/pkg/front_end/testcases/inference/future_or_subtyping.dart
@@ -0,0 +1,16 @@
+// 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;
+
+import 'dart:async';
+
+void add(int x) {}
+add2(int y) {}
+main() {
+  Future<int> f;
+  var /*@type=Future<void>*/ a = /*@promotedType=none*/ f.then(add);
+  var /*@type=Future<dynamic>*/ b = /*@promotedType=none*/ f.then(add2);
+}