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

pkg/front_end/testcases/inference/infer_assign_to_index.dart

Index: pkg/front_end/testcases/inference/infer_assign_to_index.dart
diff --git a/pkg/front_end/testcases/inference/infer_assign_to_index.dart b/pkg/front_end/testcases/inference/infer_assign_to_index.dart
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index 0000000000000000000000000000000000000000..c3060069015d0145d44b85dbc68b77b3579ef771
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+++ b/pkg/front_end/testcases/inference/infer_assign_to_index.dart
@@ -0,0 +1,9 @@
+// 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;
+
+List<double> a = <double>[];
+var /*@topType=dynamic*/ b = (/*error:TOP_LEVEL_UNSUPPORTED*/ a[0] = 1.0);