protobuf-c/protobuf-c.c: add a few extra checks to protobuf_c_message_check
protobuf-c/protobuf-c.c: add a few extra checks to
protobuf_c_message_check

pepsi7959/protobuf-c,pepsi7959/protobuf-c,Sannis/protobuf-c,virqin/protobuf-c,Sannis/protobuf-c,tutu12777/protobuf-c,hongbinz/protobuf-c,koolhazz/protobuf-c,hongbinz/protobuf-c,koolhazz/protobuf-c,lanniaoershi/protobuf-c,virqin/protobuf-c,hongbinz/protobuf-c,tutu12777/protobuf-c,tutu12777/protobuf-c,virqin/protobuf-c,lanniaoershi/protobuf-c,Sannis/protobuf-c,pepsi7959/protobuf-c,koolhazz/protobuf-c,y12uc231/protobuf-c,y12uc231/protobuf-c,y12uc231/protobuf-c,lanniaoershi/protobuf-c