PING^2: [PATCH] release the sorted FDE array when deregistering a frame [PR109685]

[Thomas Neumann via Gcc-patches]

Summary: The old linear scan logic called free while searching the list 
of frames. The atomic fast path finds the frame quickly, but forgot the 
free call. This patches adds the missing free. Bugzilla #109685.

See:
https://gcc.gnu.org/pipermail/gcc-patches/2023-May/619026.html
Best

Thomas