SOURCE_FILE@0..22
  ERROR@0..10
    ABI@0..10
      EXTERN_KW@0..6 "extern"
      WHITESPACE@6..7 " "
      STRING@7..10 "\"C\""
  WHITESPACE@10..11 " "
  ERROR@11..21
    ABI@11..21
      EXTERN_KW@11..17 "extern"
      WHITESPACE@17..18 " "
      STRING@18..21 "\"C\""
  WHITESPACE@21..22 "\n"
error 10..10: expected existential, fn, trait or impl
error 21..21: expected existential, fn, trait or impl