CharLit4 = testLex "rune literal with octal escaping"
  "'\\377'"
  [ GoTokChar (Just "'\\377'") '\xff'
  , GoTokSemicolon]

te
testCharLit4 = testLex "rune literal with octal escaping"
  "'\\377'"
  [ GoTokChar (Just "'\\377'") '\xff'
  , GoTokSemicolon]
testCharLit4 = testLex "rune literal with octal escaping"
  "'\\377'"
  [ GoTokChar (Just "'\\377'") '\xff'
  , GoTokSemicolon]