digraph "ABI diff" {
  "0" [shape=rectangle, label="'interface'"]
  "1" [label="'const unsigned short l' → 'const unsigned long l'"]
  "2" [label="'const unsigned short' → 'const unsigned long'"]
  "3" [color=red, label="'unsigned short' → 'unsigned long'"]
  "2" -> "3" [label="underlying"]
  "1" -> "2" [label=""]
  "0" -> "1" [label=""]
}