message: The seventies called, they want to haunt us with trigraphs.
  We don't let them.
diff: @@ -1758,7 +1758,7 @@ static std::initializer_list<LexerTestData> kUDPTests = {
  " ",
  {'%', "(?X)"},
  " ",
  - {'*', "(??)"},
  + {'*', "(?\?)"}, // Break tri-graph
  " ",
  {'r', "(01)"},
  " ",
  