Regenerate C# code with the new generator, adding unittest_proto3_optional.proto
The changes in the existing proto2 code are solely around presence bits. The new generator allocated presence bits more efficiently. (Previously bits were sometimes allocated but never used.)
diff --git a/csharp/generate_protos.sh b/csharp/generate_protos.sh
index e6687c3..0508584 100755
--- a/csharp/generate_protos.sh
+++ b/csharp/generate_protos.sh
@@ -63,7 +63,8 @@
csharp/protos/unittest_issue6936_c.proto \
src/google/protobuf/unittest_well_known_types.proto \
src/google/protobuf/test_messages_proto3.proto \
- src/google/protobuf/test_messages_proto2.proto
+ src/google/protobuf/test_messages_proto2.proto \
+ src/google/protobuf/unittest_proto3_optional.proto
# AddressBook sample protos
$PROTOC -Iexamples -Isrc --csharp_out=csharp/src/AddressBook \
