%%HiResBoundingBox takes floating point arguments, but is a DSC extension.
Output both so postscript readers that accept the extension can use it, and those that don't have valid output.
Bug 301631
r=kherron, sr=shaver, a=shaver
git-svn-id: svn://10.0.0.236/trunk@176621 18797224-902f-48f8-a5cc-f745e15eee43