time for a little rework

codegen/errors/errors.txt

codegen/errors/main.go

lib/gat2/balancer/balancer.go

lib/gat2/client/acceptor.go

lib/gat2/client/client.go

lib/gat2/frontend/frontend.go

lib/gat2/pool/pool.go

lib/gat2/pool/pools/session/v1/pool.go

lib/gat2/pool/pools/transaction/v1/pool.go

lib/gat2/request/request.go

lib/gat2/server/server.go

lib/gat2/sink/pools/request/pool.go

lib/gat2/sink/pools/session/pool.go

lib/gat2/sink/sink.go

lib/gat2/source/source.go

lib/gat2/source/sources/client/source.go

lib/util/race/casepool.go

lib/util/race/recv.go

lib/util/race/recv_test.go

lib/util/race/send.go