clang/test/InterfaceStubs/cxx-conversion.cpp

// RUN: %clang_cc1 -o - -emit-interface-stubs %s | FileCheck %s

// CHECK:      --- !experimental-ifs-v1
// CHECK-NEXT: IfsVersion: 1.0
// CHECK-NEXT: Triple:
// CHECK-NEXT: ObjectFileFormat: ELF
// CHECK-NEXT: Symbols:
// CHECK-NEXT: ...

template<typename T> class C1 {
    long a;
    operator long() const { return a; }
};