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

pkg/front_end/testcases/inference/future_then_conditional_deprecated_3.dart

+// 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';
+
+class MyFuture<T> implements Future<T> {
+  MyFuture() {}
+  MyFuture.value(T x) {}
+  dynamic noSuchMethod(invocation);
+  MyFuture<S> then<S>(dynamic f(T x), {Function onError}) => null;
+}
+
+void main() {
+  MyFuture<bool> f;
+  MyFuture<int> t1 = /*@promotedType=none*/ f.then(
+      /*@returnType=Future<int>*/ (/*@type=bool*/ x) async =>
+          x ? 2 : await new Future<int>.value(3));
+  MyFuture<int> t2 = /*@promotedType=none*/ f
+      .then(/*@returnType=Future<int>*/ (/*@type=bool*/ x) async {
+    return /*info:DOWN_CAST_COMPOSITE*/ await x ? 2 : new Future<int>.value(3);
+  });
+  MyFuture<int> t5 = /*@promotedType=none*/ f.then(
+      /*@returnType=Object*/ (/*@type=bool*/ x) =>
+          x ? 2 : new Future<int>.value(3));
+  MyFuture<int> t6 = /*@promotedType=none*/ f.then(
+      /*@returnType=FutureOr<int>*/ (/*@type=bool*/ x) {
+    return /*info:DOWN_CAST_COMPOSITE*/ x ? 2 : new Future<int>.value(3);
+  });
+}