// RUN: %clang_cc1 -o - -emit-interface-stubs %s | FileCheck %s // CHECK: --- !ifs-v1 // CHECK-NEXT: IfsVersion: 3.0 // CHECK-NEXT: Target: // CHECK-NEXT: Symbols: // CHECK-NEXT: ... // UnresolvedUsingTypenameDecl template<typename T> class C1 { using ReprType = unsigned; }; template<typename T> class C2 : public C1<T> { using typename C1<T>::Repr; };