518   if (FID.isInvalid())  in getPreviousFileID()
538   if (FID.isInvalid())  in getNextFileID()
1042     if (!PrevFID.isInvalid()) {  in isAtStartOfImmediateMacroExpansion()
1077     if (!NextFID.isInvalid()) {  in isAtEndOfImmediateMacroExpansion()
1164 static bool isInvalid(LocType Loc, bool *Invalid) {  in isInvalid()  function
1165   bool MyInvalid = Loc.isInvalid();  in isInvalid()
1173   if (isInvalid(Loc, Invalid)) return 0;  in getSpellingColumnNumber()
1180   if (isInvalid(Loc, Invalid)) return 0;  in getExpansionColumnNumber()
1188   if (isInvalid(PLoc, Invalid)) return 0;  in getPresumedColumnNumber()
1291   if (FID.isInvalid()) {  in getLineNumber()
1385   if (isInvalid(Loc, Invalid)) return 0;  in getSpellingLineNumber()
1391   if (isInvalid(Loc, Invalid)) return 0;  in getExpansionLineNumber()
1398   if (isInvalid(PLoc, Invalid)) return 0;  in getPresumedLineNumber()
1443   if (isInvalid(Loc, Invalid)) return "<invalid loc>";  in getBufferName()
1458   if (Loc.isInvalid()) return PresumedLoc();  in getPresumedLoc()
1528   if (Loc.isInvalid()) return false;  in isInMainFile()
1547   return FI.getIncludeLoc().isInvalid();  in isInMainFile()
1651   if (FirstFID.isInvalid()) {  in translateFile()
1668     if (FirstFID.isInvalid()) {  in translateFile()
1684   if (FirstFID.isInvalid() &&  in translateFile()
1729   if (FID.isInvalid())  in translateLineCol()
1815       if (IncludeLoc.isInvalid())  in computeMacroArgsCache()
1935   if (Loc.isInvalid() || !Loc.isFileID())  in getMacroArgExpandedLocation()
1941   if (FID.isInvalid())  in getMacroArgExpandedLocation()
1962   if (FID.isInvalid())  in getDecomposedIncludedLoc()
1998   if (UpperLoc.first.isInvalid())  in MoveUpIncludeHierarchy()
2046   if (LOffs.first.isInvalid() || ROffs.first.isInvalid())  in isBeforeInTranslationUnit()
2047     return LOffs.first.isInvalid() && !ROffs.first.isInvalid();  in isBeforeInTranslationUnit()