Include no_package.proto in Python test

Makefile.am

@@ -808,6 +808,7 @@ python_EXTRA_DIST=                                                           \
   python/google/protobuf/internal/more_extensions.proto                      \
   python/google/protobuf/internal/more_extensions_dynamic.proto              \
   python/google/protobuf/internal/more_messages.proto                        \
+  python/google/protobuf/internal/no_package.proto                           \
   python/google/protobuf/internal/packed_field_test.proto                    \
   python/google/protobuf/internal/proto_builder_test.py                      \
   python/google/protobuf/internal/python_message.py                          \

python/setup.py

@@ -107,6 +107,7 @@ def GenerateUnittestProtos():
   generate_proto("google/protobuf/internal/more_extensions.proto", False)
   generate_proto("google/protobuf/internal/more_extensions_dynamic.proto", False)
   generate_proto("google/protobuf/internal/more_messages.proto", False)
+  generate_proto("google/protobuf/internal/no_package.proto", False)
   generate_proto("google/protobuf/internal/packed_field_test.proto", False)
   generate_proto("google/protobuf/internal/test_bad_identifiers.proto", False)
   generate_proto("google/protobuf/pyext/python.proto", False)