2671 template<typename T> static bool isExternC(T *D) { return D->isExternC(); }  in isExternC()  function
2672 static bool isExternC(VarTemplateDecl *) { return false; }  in isExternC()  function
2701       !(isExternC(Old) && isExternC(New)))  in checkUsingShadowRedecl()
5765   return D->isExternC();  in isIncompleteDeclExternC()
5841     return FD->isExternC();  in isDeclExternC()
5843     return VD->isExternC();  in isDeclExternC()
6568     if (shadowedVar->isExternC()) {  in CheckShadow()
8549         !(II && II->isStr("printf") && NewFD->isExternC() &&  in ActOnFunctionDeclarator()
8891     if (Previous.empty() && NewFD->isExternC()) {  in CheckFunctionDeclaration()
9911            VDecl->isExternC())) &&  in AddInitializerToDecl()
11894       FD->isExternC() && !FD->hasAttr<NoThrowAttr>()) {  in AddKnownFunctionAttributes()