516                                     DiagnosticsEngine &Diags, bool IsSystem,  in checkDiagnosticMappings()  argument
520   if (IsSystem) {  in checkDiagnosticMappings()
607   return checkDiagnosticMappings(*Diags, ExistingDiags, TopM->IsSystem,  in ReadDiagnosticOptions()
2937           bool IsSystem = I >= NumUserInputs;  in ReadControlBlock()  local
2940               FI.FilenameAsRequested, IsSystem, FI.Overridden,  in ReadControlBlock()
5779       bool IsSystem = Record[Idx++];  in ReadSubmoduleBlock()  local
5830       CurrentModule->IsSystem = IsSystem || CurrentModule->IsSystem;  in ReadSubmoduleBlock()
9664                             bool IsSystem)>  in visitInputFileInfos()
9671     bool IsSystem = I >= NumUserInputs;  in visitInputFileInfos()  local
9673     Visitor(IFI, IsSystem);  in visitInputFileInfos()
9686     bool IsSystem = I >= NumUserInputs;  in visitInputFiles()  local
9688     Visitor(IF, IsSystem);  in visitInputFiles()