Move the fingerprint_style special case into DepKindVTable creation
#151936
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This PR was rebased onto a different main commit. Here's a range-diff highlighting what actually changed. Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers. |
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I'm a little bit fuzzy on precisely why anonymous queries are treated as having
FingerprintStyle::Opaque, but I'm pretty confident that baking this special case into the query vtable is equivalent to the current behaviour, while being marginally more efficient.(I believe this special case comes from anonymous queries not having a fingerprint in the first place, so “opaque” is just there to signal that reconstructing a key is impossible.)