go/src/fidl/compiler/backend/typestest/xunion.fidl

library test.name;

xunion OlderSimpleUnion {
  int64 i;
  float32 f;
};

xunion NewerSimpleUnion {
  // float f;  // removed

  int64 i;  // unchanged

  string s;  // added
  vector<string> v;  // added
};