lookupFileDescriptor(protoName:)
Lookup a specific file. The names for files are what was captured in the Google_Protobuf_FileDescriptorProto
when it was created, protoc uses the path name for how the file was found.
This declaration has been renamed to DescriptorSet.fileDescriptor(named:).
This declaration is deprecated.
func lookupFileDescriptor(protoName name: String) -> FileDescriptor
This is a legacy api since it requires the file to be found or it aborts. Mainly kept for grpc-swift compatibility.