third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/java/core/src/test/proto/com/google/protobuf/field_presence_test.proto

 // 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 18 matching lines @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 syntax = "proto3";
 
 package field_presence_test;
 
 import "google/protobuf/unittest.proto";
 
 option java_package = "com.google.protobuf";
 option java_outer_classname = "FieldPresenceTestProto";
-option java_generate_equals_and_hash = true;
 
 message TestAllTypes {
   enum NestedEnum {
     FOO = 0;
     BAR = 1;
     BAZ = 2;
   }
   message NestedMessage {
     int32 value = 1;
   }
 
   int32 optional_int32 = 1;
   string optional_string = 2;
   bytes optional_bytes = 3;
   NestedEnum optional_nested_enum = 4;
   NestedMessage optional_nested_message = 5;
   protobuf_unittest.TestRequired optional_proto2_message = 6;
+  NestedMessage optional_lazy_message = 7 [lazy=true];
 
   oneof oneof_field {
     int32 oneof_int32 = 11;
     uint32 oneof_uint32 = 12;
     string oneof_string = 13;
     bytes oneof_bytes = 14;
     NestedEnum oneof_nested_enum = 15;
     NestedMessage oneof_nested_message = 16;
     protobuf_unittest.TestRequired oneof_proto2_message = 17;
   }
 
   repeated int32 repeated_int32 = 21;
   repeated string repeated_string = 22;
   repeated bytes repeated_bytes = 23;
   repeated NestedEnum repeated_nested_enum = 24;
   repeated NestedMessage repeated_nested_message = 25;
   repeated protobuf_unittest.TestRequired repeated_proto2_message = 26;
   repeated NestedEnum packed_nested_enum = 27 [packed = true];
 }
 
 message TestOptionalFieldsOnly {
   int32 optional_int32 = 1;
   string optional_string = 2;
   bytes optional_bytes = 3;
   TestAllTypes.NestedEnum optional_nested_enum = 4;
   TestAllTypes.NestedMessage optional_nested_message = 5;
   protobuf_unittest.TestRequired optional_proto2_message = 6;
+  TestAllTypes.NestedMessage optional_lazy_message = 7 [lazy=true];
 }
 
 message TestRepeatedFieldsOnly {
   repeated int32 repeated_int32 = 21;
   repeated string repeated_string = 22;
   repeated bytes repeated_bytes = 23;
   repeated TestAllTypes.NestedEnum repeated_nested_enum = 24;
   repeated TestAllTypes.NestedMessage repeated_nested_message = 25;
   repeated protobuf_unittest.TestRequired repeated_proto2_message = 26;
 }