static array with inferred size

[Steven Schveighoffer]

This needs to happen.

e.g.:

char[$] arr = "hello"; // syntax up for debate, but I like this.

I can't think of a correct way to do this that doesn't heap-allocate and 
is DRY.

D is so powerful, it's a huge shame it can't figure this one out.

issue: https://issues.dlang.org/show_bug.cgi?id=481

Fix that was merged: https://github.com/dlang/dmd/pull/3615

And then reverted: https://github.com/dlang/dmd/pull/4373

Maybe there was an issue with the implementation? Can it be redone?

-Steve