Reverts third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/java/core/src/test/proto/com/google/protobuf/map_for_proto2_lite_test.proto

Index: third_party/protobuf/java/core/src/test/proto/com/google/protobuf/map_for_proto2_lite_test.proto
diff --git a/third_party/protobuf/java/core/src/test/proto/com/google/protobuf/map_for_proto2_lite_test.proto b/third_party/protobuf/java/core/src/test/proto/com/google/protobuf/map_for_proto2_lite_test.proto
index 2ca0251ca22de56e68f8a48d5e1d7666071e7a94..d5418f28bc069dc0ee21ced4201ec2af4c3a4d5a 100644
--- a/third_party/protobuf/java/core/src/test/proto/com/google/protobuf/map_for_proto2_lite_test.proto
+++ b/third_party/protobuf/java/core/src/test/proto/com/google/protobuf/map_for_proto2_lite_test.proto
@@ -32,6 +32,7 @@ syntax = "proto2";
 
 
 option java_outer_classname = "MapForProto2TestProto";
+option java_generate_equals_and_hash = true;
 
 message TestMap {
   message MessageValue {
@@ -69,53 +70,6 @@ message TestRecursiveMap {
   optional int32 value = 1;
   map<int32, TestRecursiveMap> recursive_map_field = 2;
 }
-
-
-// a decoy of TestMap for testing parsing errors
-message BizarroTestMap {
-  map<int32, bytes> int32_to_int32_field = 1; // same key type, different value
-  map<string, int32> int32_to_string_field = 2; // different key and value types
-  map<string, int32> int32_to_bytes_field = 3; // different key types, same value
-  map<string, bytes> int32_to_enum_field = 4; // different key and value types
-  map<string, bytes> int32_to_message_field = 5; // different key and value types
-  map<string, bytes> string_to_int32_field = 6;  // same key type, different value
-}
-
-// Used to test that java reserved words can be used as protobuf field names
-// Not all reserved words are tested (to avoid bloat) but instead an arbitrary
-// subset of them chosen to cover various keyword categories like
-// type, modifier, declaration, etc.
-message ReservedAsMapField {
-  map<string, uint32> if = 1;
-  map<string, uint32> const = 2;
-  map<string, uint32> private = 3;
-  map<string, uint32> class = 4;
-  map<string, uint32> int = 5;
-  map<string, uint32> void = 6;
-  map<string, uint32> string = 7; // These are also proto keywords
-  map<string, uint32> package = 8;
-  map<string, uint32> enum = 9; // Most recent Java reserved word
-  map<string, uint32> null = 10;
-  // null is not a 'reserved word' per se but as a literal needs similar care
-}
-
-message ReservedAsMapFieldWithEnumValue {
-  enum SampleEnum {
-    A = 0;
-    B = 1;
-  }
-  map<string, SampleEnum> if = 1;
-  map<string, SampleEnum> const = 2;
-  map<string, SampleEnum> private = 3;
-  map<string, SampleEnum> class = 4;
-  map<string, SampleEnum> int = 5;
-  map<string, SampleEnum> void = 6;
-  map<string, SampleEnum> string = 7; // These are also proto keywords
-  map<string, SampleEnum> package = 8;
-  map<string, SampleEnum> enum = 9; // Most recent Java reserved word
-  map<string, SampleEnum> null = 10;
-  // null is not a 'reserved word' per se but as a literal needs similar care
-}
 package map_for_proto2_lite_test;
 option java_package = "map_lite_test";
 option optimize_for = LITE_RUNTIME;