* perf(writer): drop some lambda expressions
* perf(writer): drop more lambda expressions
* fix: resolve conflicts
* perf(writer): drop more lambda expressions
* fix: modify function name
* perf(writer): drop more lambda expressions
* fix: some error
mostly auto-generated by
```
rf '
ex {
var c QQClient
var seq uint16
var payload []byte
var command string
BuildUniPacket(c.Uin, seq, command, 1, c.OutGoingPacketSessionId, EmptyBytes, c.sigInfo.d2Key, payload) -> c.uniPacket(seq, command, payload)
}
'
```
