var reflect.bytesType2 uses
reflect (current package)
value.go#L293: var bytesType = rtypeOf(([]byte)(nil))
value.go#L300: if v.typ_ == bytesType { // ok to use v.typ_ directly as comparison doesn't cause escape
The pages are generated with Goldsv0.7.6. (GOOS=linux GOARCH=amd64)