[Issue 20510] Make backtrace code read the dSYM data

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20510

--- Comment #2 from Mathias LANG <pro.mathias.lang at gmail.com> ---
I have a WIP locally so anyone interested, feel free to contact me.
As a reference, this is how LLVM looks up UUID:
https://lldb.llvm.org/use/symbols.html

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