[Issue 20137] A program crashes at runtime (should be compile error)

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20137

--- Comment #3 from Victor Porton <porton at narod.ru> ---
This "by design" is very disgracing. Need to do something.

If to make it more reliable it's needed compiler changes, a new compiler
"directive" should be added.

@safe being missing should make harmlessly looking seemingly good program crash
without any warning in an unpredictable way!

It is a reliability BUG, not just a misfeature. As it is a bug, fix it.

--