2878 template<typename T> static bool isExternC(T *D) { return D->isExternC(); }  in isExternC()  function
2879 static bool isExternC(VarTemplateDecl *) { return false; }  in isExternC()  function
2908       !(isExternC(Old) && isExternC(New)))  in checkUsingShadowRedecl()
6185   return D->isExternC();  in isIncompleteDeclExternC()
6253     return FD->isExternC();  in isDeclExternC()
6255     return VD->isExternC();  in isDeclExternC()
7033     if (shadowedVar->isExternC()) {  in CheckShadow()
9156         !(II && II->isStr("printf") && NewFD->isExternC() &&  in ActOnFunctionDeclarator()
9558     if (OldFD->isExternC() != NewFD->isExternC())  in CheckMultiVersionAdditionalRules()
10223     if (Previous.empty() && NewFD->isExternC()) {  in CheckFunctionDeclaration()
11357         !(getLangOpts().CPlusPlus && VDecl->isExternC()) &&  in AddInitializerToDecl()
13633       FD->isExternC() && !FD->hasAttr<NoThrowAttr>()) {  in AddKnownFunctionAttributes()