[cfe-dev] Surprising cast

[Abramo Bagnara]

$ cat p.c
enum {
  a = 1
};
$ clang -cc1 -ast-dump p.c
typedef char *__builtin_va_list;
enum  {
    a = (ImplicitCastExpr 0xb9e11f0 <p.c:2:7> 'int' <IntegralCast>
  (IntegerLiteral 0xb9e11a0 <col:7> 'int' 1))

};

The implicit cast from int to int is deliberate?