Note about the future of the IntoIterator special case
@@ -69,6 +69,8 @@ These cases require a [disambiguating function call syntax] for method and funct
> **Edition Differences**: Before the 2021 edition, during the search for visible methods, if the candidate receiver type is an [array type], methods provided by the standard library [`IntoIterator`] trait are ignored.
>
> The edition used for this purpose is determined by the token representing the method name.
+>
+> This special case may be removed in the future.
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