Regarding warnings

[Kagamin]

On Saturday, 29 June 2013 at 20:26:15 UTC, Jonathan M Davis wrote:
> http://d.puremagic.com/issues/show_bug.cgi?id=10147

This problem is because the compiler processes warnings too 
early. If the is expression issues only warnings, it probably 
should succeed, because those warnings don't escape the is 
expression (just like errors). Only if they make it to be 
reported, turn them into errors and stop compilation.