Type inference for StringConcatenation.

pkg/front_end/testcases/inference/simple_literal_string.dart

Index: pkg/front_end/testcases/inference/simple_literal_string.dart
diff --git a/pkg/front_end/testcases/inference/simple_literal_string.dart b/pkg/front_end/testcases/inference/simple_literal_string.dart
deleted file mode 100644
index addac1ebe5b63ba3963a726f86b9d1e9004bbf25..0000000000000000000000000000000000000000
--- a/pkg/front_end/testcases/inference/simple_literal_string.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// 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.md file.
-
-/*@testedFeatures=inference*/
-library test;
-
-var /*@topType=String*/ topSimple = 'aaa';
-
-main() {
-  var /*@type=String*/ localSimple = 'ccc';
-}