1730 DTrace should ignore type information from modules with cth_parlabel mismatches
Reviewed by: Keith Wesolowski <keith.wesolowski@joyent.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>

*** 154,163 ****
--- 154,164 ----
  extern ctf_file_t *ctf_dup(ctf_file_t *);
  extern void ctf_close(ctf_file_t *);
  
  extern ctf_file_t *ctf_parent_file(ctf_file_t *);
  extern const char *ctf_parent_name(ctf_file_t *);
+ extern const char *ctf_parent_label(ctf_file_t *);
  
  extern int ctf_import(ctf_file_t *, ctf_file_t *);
  extern int ctf_setmodel(ctf_file_t *, int);
  extern int ctf_getmodel(ctf_file_t *);