Compiler should throw error for access array member inside of auth() function

It should throw an error for the below policy:
```ts
model User {
  id Int @id @default(autoincrement())
  email Int
  posts Post[]
}

model Post {
  id Int @id @default(autoincrement())
  author User? @relation(fields: [authorId], references: [id])
  authorId Int
  @@allow('all', auth().posts.authorId == authorId)
}
```