Added Generated error helper

transport/internet/domainsocket/errgen.go

@@ -0,0 +1,3 @@
+package domainsocket
+
+//go:generate go run $GOPATH/src/v2ray.com/core/tools/generrorgen/main.go -pkg domainsocket -path Transport,Internet,DomainSocket

transport/internet/domainsocket/errors.generated.go

@@ -0,0 +1,5 @@
+package domainsocket
+
+import "v2ray.com/core/common/errors"
+
+func newError(values ...interface{}) *errors.Error { return errors.New(values...).Path("Transport", "Internet", "DomainSocket") }