Now that we're using LLVM 2.5, we can stop always running the CFGSimplification pass. The pass was originally added as a workaround for a LLVM 2.4 bug where debug info would reference labels that have been optimized away.

module bug78;

void main()
{
    typedef int int_t = 42;
    int_t i;
    assert(i == int_t.init);
}