DMD 1.021 and 2.004 releases

[Bill Baxter]

Walter Bright wrote:
> Mostly bug fixes for CTFE. Added library switches at Tango's request.
> 
> http://www.digitalmars.com/d/1.0/changelog.html
> http://ftp.digitalmars.com/dmd.1.021.zip
> 
> http://www.digitalmars.com/d/changelog.html
> http://ftp.digitalmars.com/dmd.2.004.zip

What's std.hiddenfunc for?  I looked at the code but it didn't help.

--bb