[llvm] [DebugInfo][DWARF] Utilize DW_AT_LLVM_stmt_sequence attr in line table lookups (PR #123391)

[David Blaikie via llvm-commits]

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@@ -1401,6 +1409,14 @@ bool DWARFDebugLine::LineTable::lookupAddressRangeImpl(
 
   while (SeqPos != LastSeq && SeqPos->LowPC < EndAddr) {
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dwblaikie wrote:

Aside: this seems questionable... The LowPC of one sequence isn't necessarily related to the LowPC of another sequence (the linker could reorder them), so I'm not sure what this is meant to do but I'm a bit surprised/not sure it does whatever it is meant to do.

https://github.com/llvm/llvm-project/pull/123391