llvm-project/clang/test/FixIt/fixit-c90.c

/* RUN: cp %s %t
   RUN: %clang_cc1 -std=c90 -pedantic -fixit %t
   RUN: %clang_cc1 -pedantic -x c -std=c90 -Werror %t
 */
/*
   This test passes because clang merely warns for this syntax error even with
   -pedantic -Werror -std=c90.
 */

/* This is a test of the various code modification hints that are
   provided as part of warning or extension diagnostics. All of the
   warnings will be fixed by -fixit, and the resulting file should
   compile cleanly with -Werror -pedantic. */

enum e0 {
  e1,
};