Feature-gate associated constants.
@@ -2135,7 +2135,10 @@ The currently implemented features of the reference compiler are:
semantics are likely to change, so this macro usage must be opted
into.
-* `associated_types` - Allows type aliases in traits. Experimental.
+* `associated_consts` - Allows constants to be defined in `impl` and `trait`
+ blocks, so that they can be associated with a type or
+ trait in a similar manner to methods and associated
+ types.
* `box_patterns` - Allows `box` patterns, the exact semantics of which
is subject to change.
