Temporarily force our LLVMContext to the global context From llvm r75846: "To simplify the upcoming context-on-type change, switch all command line tools to using the default global context for now."

interface I {}
class A : I {}
class B : A {}

void main () {
    A a = new A;
    I i = a;

    assert(!cast(B)a);
    assert(!cast(B)i);
}