lib/Basic/Warnings.cpp

137         StringRef Specifier;
138         if (Opt.size() > 5) {  // Specifier must be present.
146           Specifier = Opt.substr(6);
149         if (Specifier.empty()) {
157           Diags.setDiagnosticGroupWarningAsError(Specifier, isPositive);
158         } else if (DiagIDs->getDiagnosticsInGroup(Flavor, Specifier, _Diags)) {
159           EmitUnknownDiagWarning(Diags, Flavor, "-Werror=", Specifier);
166         StringRef Specifier;
174           Specifier = Opt.substr(13);
177         if (Specifier.empty()) {
185           Diags.setDiagnosticGroupErrorAsFatal(Specifier, isPositive);
186         } else if (DiagIDs->getDiagnosticsInGroup(Flavor, Specifier, _Diags)) {
187           EmitUnknownDiagWarning(Diags, Flavor, "-Wfatal-errors=", Specifier);