D should disallow forward references

[Stewart Gordon]

grauzone wrote:
<snip>
> For a general overview of forward reference bugs, just search Bugzilla:
> http://d.puremagic.com/issues/buglist.cgi?quicksearch=forward+reference
<snip>

http://d.puremagic.com/issues/show_bug.cgi?id=340

Stewart.