Initialize LLVM target and asmprinter for the native and extra targets. Uses some CMake hackery to get the native LLVM target name, since it only provides a conveniance function for initializing the native target and not the native asmprinter.

struct Foo;

Foo* foo()
{
    return null;
}

void main()
{
    Foo* f = foo();
    assert(f is null);
}