272   FullSourceLoc XL = X.getLocation().asLocation();  in comparePiece()  local
274   if (XL != YL)  in comparePiece()
275     return XL.isBeforeInTranslationUnitThan(YL);  in comparePiece()
283   const SourceManager &SM = XL.getManager();  in comparePiece()
329 static bool compareCrossTUSourceLocs(FullSourceLoc XL, FullSourceLoc YL) {  in compareCrossTUSourceLocs()  argument
330   if (XL.isInvalid() && YL.isValid())  in compareCrossTUSourceLocs()
332   if (XL.isValid() && YL.isInvalid())  in compareCrossTUSourceLocs()
334   std::pair<FileID, unsigned> XOffs = XL.getDecomposedLoc();  in compareCrossTUSourceLocs()
336   const SourceManager &SM = XL.getManager();  in compareCrossTUSourceLocs()
339     return XL.isBeforeInTranslationUnitThan(YL);  in compareCrossTUSourceLocs()
340   const FileEntry *XFE = SM.getFileEntryForID(XL.getSpellingLoc().getFileID());  in compareCrossTUSourceLocs()
348   return XL.getFileID() < YL.getFileID();  in compareCrossTUSourceLocs()
352   FullSourceLoc XL = X.getLocation().asLocation();  in compare()  local
354   if (XL != YL)  in compare()
355     return compareCrossTUSourceLocs(XL, YL);  in compare()
368   auto CompareDecls = [&XL](const Decl *D1, const Decl *D2) -> Optional<bool> {  in compare()
378       const SourceManager &SM = XL.getManager();  in compare()