llvm/test/CFrontend/2002-05-23-TypeNameCollision.c

/* Testcase for when struct tag conflicts with typedef name... grr */

typedef struct foo {
  struct foo *X;
  int Y;
} * foo;

foo F1;
struct foo *F2;

enum bar { test1, test2 };

typedef float bar;

enum bar B1;
bar B2;