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Enabling this option prevents fuzzers/sanitizers from setting the
-gline-tables-only and -gcolumn-info flags, and instead uses the symbol
level defined by symbol_level.

This is particularly useful for reducing binary sizes when building with
use_clang_coverage=true, where stack traces are unneeded and line
numbers for coverage are determined from the coverage mappings.

Bug: 759795
Change-Id: Iae3ea9ede10281c9f29c461ed5d6eec503a661cd
Reviewed-on: https://chromium-review.googlesource.com/887285Reviewed-by: Oliver Chang <ochang@chromium.org>
Reviewed-by: Abhishek Arya <inferno@chromium.org>
Commit-Queue: Abhishek Arya <inferno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#532905}