nual checking of all range statements over maps to
verify they do not depend on iteration order. There were a few such
examples in the standard repository; they have been fixed.
Note that it was already incorrect to depend on the iteration order, which
was unspecified. This change codifies the unpredictability.
</p>

<h3 id="multiple_assignment">Multiple assignment</h3>

<p>
The language specification has long guaranteed that in assignments
the right-hand-side expressions are all evaluated before any left-h