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

pkg/front_end/testcases/inference/block_bodied_lambdas_infer_bottom_sync.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;
+
+var /*@topType=dynamic*/ h = null;
+void foo(int f(Object _)) {}
+
+main() {
+  var /*@type=(Object x) → Null*/ f = /*@returnType=Null*/ (Object x) {
+    return null;
+  };
+  String y = /*@promotedType=none*/ f(42);
+
+  f = /*error:INVALID_CAST_FUNCTION_EXPR*/ /*@returnType=String*/ (/*@type=Object*/ x) =>
+      'hello';
+
+  foo(/*@returnType=Null*/ (/*@type=Object*/ x) {
+    return null;
+  });
+  foo(/*@returnType=Null*/ (/*@type=Object*/ x) {
+    throw "not implemented";
+  });
+}