[Issue 10842] auto return function not executed depending on how it's called

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10842


Andrej Mitrovic <andrej.mitrovich at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |andrej.mitrovich at gmail.com


--- Comment #1 from Andrej Mitrovic <andrej.mitrovich at gmail.com> 2013-08-17 18:40:12 PDT ---
Reduced:

-----
auto ret1()
{
    assert(0);  // should throw, doesn't
    return null;
}

string test1()
{
    return ret1();
}

void main()
{
    test1();
}
-----

If you change the return to an explicit expression, e.g. `return ""`, then the
assert is triggered.

Also perhaps noteworthy is that in older releases the reduced code used to fail
to compile, e.g. in 2.057:

Error: e2ir: cannot cast ret1() of type typeof(null) to type string

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