Alexander Yermolovich 4f902d2425 [llvm-dwarfdump] Make --verify for .debug_names multithreaded. (#127281) ...

This PR makes verification of .debug_names acceleration table
multithreaded. In local testing it improves verification of clang
.debug_names from four minutes to under a minute.
This PR relies on a current mechanism of extracting DIEs into a vector. 
Future improvements can include creating API to extract one DIE at a
time, or grouping Entires into buckets by CUs and extracting before
parallel step.

Single Thread
4:12.37 real,   246.88 user,    3.54 sys,       0 amem,10232004 mmem
Multi Thread
0:49.40 real,   612.84 user,    515.73 sys,     0 amem, 11226292 mmem

2025-04-03 14:02:27 -07:00

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