#dbugfix Issue 18068 - No file names and line numbers in stack trace

[Mike Franklin]

https://issues.dlang.org/show_bug.cgi?id=18068

I tried to fix this one myself, but it beat me. It's also 
currently causing me friction when working on DMD.  I would love 
to see it fixed.

Interestingly, however, it works fine in the auto-tester.  But, 
problem can be reproduced at https://run.dlang.io/ (e.g. 
https://run.dlang.io/is/hatIXE).  Maybe it's dependent on the 
host compiler being used; I don't know.

Mike