chore: import upstream snapshot with attribution

test/addressbook_map.proto

@@ -0,0 +1,67 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+syntax="proto2";
+message AddressNoMap {
+    required string addr = 1;
+}
+
+message AddressIntMap {
+    required string addr = 1;
+    message MapFieldEntry {
+        required string key = 1;
+        required int32 value = 2;
+    }
+    repeated MapFieldEntry numbers = 2;
+}
+
+message AddressStringMap {
+    required string addr = 1;
+    message MapFieldEntry {
+        required string key = 1;
+        required string value = 2;
+    }
+    repeated MapFieldEntry contacts = 2;
+}
+
+message AddressComplex {
+    required string addr = 1;
+    
+    message FriendEntry {
+        required string key = 1;
+        message Education {
+            required string school = 1;
+            required int32 year = 2;
+        }
+        repeated Education value = 2;
+    }
+    repeated FriendEntry friends = 2;
+}
+
+message AddressIntMapStd {
+    required string addr = 1;
+    map<string, int32> numbers = 2;
+}
+
+message AddressStringMapStd {
+    required string addr = 1;
+    map<string, string> contacts = 2;
+}
+
+message haha {
+    repeated int32 a = 1;
+}