[Issue 23117] crash in @safe code after CTFE

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23117

Dennis <dkorpel at live.nl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dkorpel at live.nl

--- Comment #1 from Dennis <dkorpel at live.nl> ---
Reduced to remove Phobos imports:
```
@safe:

auto crash = foo([10]);
void main()
{
    assert(crash.front.front == 10);
}

struct Map(alias f)
{
    int[] range;
    auto front() { return f(range[0]); }
}

struct Enumerate
{
    int[] range;
    int front() { return range[0]; }
}

auto foo(int[] r)
{
    return Map!(x => Enumerate(r))(r);
}
```

--