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

pkg/front_end/testcases/inference/infer_prefix_expression.dart

Index: pkg/front_end/testcases/inference/infer_prefix_expression.dart
diff --git a/pkg/front_end/testcases/inference/infer_prefix_expression.dart b/pkg/front_end/testcases/inference/infer_prefix_expression.dart
new file mode 100644
index 0000000000000000000000000000000000000000..dfdc1faab0a6056498fe548db9528f7481f28ef9
--- /dev/null
+++ b/pkg/front_end/testcases/inference/infer_prefix_expression.dart
@@ -0,0 +1,10 @@
+// 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=bool*/ a_not = !true;
+var /*@topType=int*/ a_complement = ~1;
+var /*@topType=int*/ a_negate = -1;