Restrict Class Properties?

[Manfred Nowak]

BCS wrote
> Um, why not? Why is this a bad thing?
I do not say that it is bad, just surprising.

It is surprising because the left side of an assignment must have 
special properties. So special, that those properties have been 
attributed with the name "lvalue", for "left value of assignment".

D mixes this up: something that appears to be an assignment has no 
rvalue, but its "left value" on the right part of the assignment.

If the "=" call notation would be disallowed for out and inout 
parameters, that lvalue, rvalue convention would be held up.

-manfred