Zequan Wu 23aca2f88d Revert "Symbolize line zero as if no source info is available (#124846)" ...

This commit creates an inconsistency on `__sanitizer_symbolize_pc` API. Before this change, this API always uses the filename from debug info when the line number is 0. After this change, the filename becomes invalid when line number is 0. The sanitizer might fall back to use base filename from symbol table. So, this API may return either `??:0` or `{filename from symbol table}:0` depending on if the symbol table has the filename for it. Make sure this inconsistency is resolved before relanding the commit.

2025-02-24 13:00:33 -08:00

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