bio and retainer profiling segfaults
`heapprof001(prof_hc_hb,prof_hr)` is segfaulting.
<details><summary>Trac metadata</summary>
| Trac field | Value |
| ---------------------- | ------------ |
| Version | 6.9 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Profiling |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | Unknown |
| Architecture | Unknown |
</details>
<!-- {"blocked_by":[],"summary":"bio and retainer profiling segfaults","status":"New","operating_system":"Unknown","component":"Profiling","related":[],"milestone":"6.10.1","resolution":"Unresolved","owner":{"tag":"Unowned"},"version":"6.9","keywords":[],"differentials":[],"test_case":"","architecture":"Unknown","cc":[""],"type":"Bug","description":"`heapprof001(prof_hc_hb,prof_hr)` is segfaulting.\r\n","type_of_failure":"OtherFailure","blocking":[]} -->
issue