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0ea65efd6d
In a prior commit, we fixed a performance problem with the -w flag by doing a little extra work to extract literals. It turns out that using literals in this case when the -w flag is NOT used results in a performance regression. The reasoning is that we end up using a "fast" regex as a prefilter when the regex engine itself uses its own equivalent prefilter, so ripgrep ends up redoing a fair amount of work. Instead, we only do this extra work when we know the -w flag is enabled.