Implement first version of proto lite shrinker.

Bug:
Change-Id: Ia77e68cfd634f38954cdcbe1537fd86937ff9720
diff --git a/src/test/examples/repeatedproto/repeated.proto b/src/test/examples/repeatedproto/repeated.proto
new file mode 100644
index 0000000..7414e6f
--- /dev/null
+++ b/src/test/examples/repeatedproto/repeated.proto
@@ -0,0 +1,20 @@
+// Copyright (c) 2016, the R8 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.
+syntax = "proto2";
+package repeatedproto;
+
+option java_outer_classname = "GeneratedRepeatedProto";
+
+message Repeated {
+  required int32 id = 1;
+  repeated string repeated = 2;
+  repeated bool other = 3;
+
+  message Sub {
+    required int32 value = 1;
+  }
+
+  repeated Sub sub = 4;
+}
+