re. Arrays and Assoc

[nikhil]

Thomas Johnsson says:

>    If I recall correctly, the := to be used in array comprehensions was a
>    consession to the FORTRAN/Id/Sisal community, so that array comprehensions
>    would look more like they were used to.

Both Arvind and I think this is notation is awful, and I don't recall
either of us ASKING for it, so this was probably someone else's idea
of a ``concession'' to the Id community!

Nikhil