Add package for map test for nano.

javanano/pom.xml

@@ -94,6 +94,10 @@
                   <arg value="src/test/java/com/google/protobuf/nano/unittest_multiple_nameclash_nano.proto" />
                   <arg value="src/test/java/com/google/protobuf/nano/unittest_enum_class_nano.proto" />
                   <arg value="src/test/java/com/google/protobuf/nano/unittest_repeated_merge_nano.proto" />
+                </exec>
+                <exec executable="../src/protoc">
+                  <arg value="--javanano_out=generate_equals=true:target/generated-test-sources" />
+                  <arg value="--proto_path=src/test/java/com" />
                   <arg value="src/test/java/com/google/protobuf/nano/map_test.proto" />
                 </exec>
                 <exec executable="../src/protoc">

javanano/src/test/java/com/google/protobuf/nano/map_test.proto

@@ -32,7 +32,10 @@ syntax = "proto3";
 
 package map_test;
 
-mesasge TestMap {
+option java_package = "com.google.protobuf.nano";
+option java_outer_classname = "MapTestProto";
+
+message TestMap {
   message MessageValue {
     int32 value = 1;
   }