dt_decl_spec
dt_decl_t *ddp = dt_decl_spec(kind, name);
dt_decl_t *ddp = dt_decl_spec(CTF_K_ENUM, name);
extern dt_decl_t *dt_decl_spec(ushort_t, char *);
type_specifier: DT_KEY_VOID { $$ = dt_decl_spec(CTF_K_INTEGER, DUP("void")); }
| DT_KEY_CHAR { $$ = dt_decl_spec(CTF_K_INTEGER, DUP("char")); }
| DT_KEY_INT { $$ = dt_decl_spec(CTF_K_INTEGER, DUP("int")); }
| DT_KEY_FLOAT { $$ = dt_decl_spec(CTF_K_FLOAT, DUP("float")); }
| DT_KEY_DOUBLE { $$ = dt_decl_spec(CTF_K_FLOAT, DUP("double")); }
$$ = dt_decl_spec(CTF_K_TYPEDEF, DUP("string"));
| DT_TOK_TNAME { $$ = dt_decl_spec(CTF_K_TYPEDEF, $1); }
| struct_or_union DT_TOK_IDENT { $$ = dt_decl_spec($1, $2); }
| struct_or_union DT_TOK_TNAME { $$ = dt_decl_spec($1, $2); }
| DT_KEY_ENUM DT_TOK_IDENT { $$ = dt_decl_spec(CTF_K_ENUM, $2); }
| DT_KEY_ENUM DT_TOK_TNAME { $$ = dt_decl_spec(CTF_K_ENUM, $2); }