Duncan P. N. Exon Smith 538ee6c38c Support: Avoid std::tie in Support/FileSystem/UniqueID.h, NFC ... Running `-fsyntax-only` on UniqueID.h is 2x faster with this patch (which avoids calling `std::tie` for `operator<`). Since the transitive includers of this file will go up as `FileEntryRef` gets used in more places, avoid that compile-time hit. This is a follow-up to 23ed570af1cc165afea1b70a533a4a39d6656501 (suggested by Reid Kleckner). Also drop the `<tuple>` include from FileSystem.h (which was vestigal from before UniqueID.h was split out). Differential Revision: https://reviews.llvm.org/D90471		2020-11-02 13:26:15 -05:00
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UniqueID.h	Support: Avoid std::tie in Support/FileSystem/UniqueID.h, NFC	2020-11-02 13:26:15 -05:00