Support for relationships on the same node types

[lilianaziolek]

When specifying a relation with 2 different node types on both ends (e.g. Movie and Actor), this relation can be used inside Movie or Actor and gets correct direction (depending on from/to values in relation).
If both ends of a relation have the same type, there currently seems to be no way to indicate which "side" of the relation a field should relate to. See an example below:

type User {
  name:String
  referredBy: Referral @relation(direction: OUT)
  referred:[Referral] @relation(direction: IN)
}
type Referral @relation (name:"REFERRED_BY", from:"user", to: "referredBy" ) {
  user:User
  referredBy:User
  referralDate:String
}

At the moment, generated query will use outgoing relationship for both referredBy and referred