Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -emit-llvm-only %s struct A { int a; virtual void aa(int&); }; struct B { int b; virtual void bb(int&); }; struct C : A,B { virtual void aa(int&), bb(int&); }; void C::aa(int&) {} void C::bb(int&) {}