Reverts third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/java/core/src/test/java/com/google/protobuf/MessageTest.java

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
@@ skipping 17 matching lines @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 package com.google.protobuf;
 
 import protobuf_unittest.UnittestProto.ForeignMessage;
 import protobuf_unittest.UnittestProto.TestAllExtensions;
 import protobuf_unittest.UnittestProto.TestAllTypes;
 import protobuf_unittest.UnittestProto.TestRequired;
 import protobuf_unittest.UnittestProto.TestRequiredForeign;
+
+import junit.framework.TestCase;
+
 import java.util.List;
-import junit.framework.TestCase;
 
 /**
  * Misc. unit tests for message operations that apply to both generated
  * and dynamic messages.
  *
  * @author kenton@google.com Kenton Varda
  */
 public class MessageTest extends TestCase {
   // =================================================================
   // Message-merging tests.
@@ skipping 292 matching lines @@
       DynamicMessage.newBuilder(TestAllTypes.getDescriptor())
         .mergeFrom(DynamicMessage.newBuilder(REPEATED_NESTED).build())
         .build();
 
     assertTrue(result.getField(result.getDescriptorForType()
         .findFieldByName("repeated_foreign_message")) instanceof List<?>);
     assertEquals(result.getRepeatedFieldCount(result.getDescriptorForType()
         .findFieldByName("repeated_foreign_message")), 2);
   }
 }