[Issue 5118] Stack traces should properly handle nested functions

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=5118

--- Comment #1 from hsteoh at quickfur.ath.cx ---
If I run the program under gdb and set a breakpoint on the throw, gdb is able
to display the nested function as part of the call stack. So obviously all
necessary info is there, it's just a matter of incorporating it into the
stacktrace generated by the throw.

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