Add changelog entry for #1944

Author: voodoos

CHANGES.md

@@ -17,6 +17,8 @@ unreleased
       to scopes bit masks when backtracking the typer cache (#1935)
     - Add a new selection field to outline results that contains the location of
       the symbol itself. (#1942)
+    - Fix destruct hanging when printing patterns with (::). (#1944, fixes
+      ocaml/ocaml-lsp#1489)
   + ocaml-index
     - Improve the granularity of index reading by segmenting the marshalization
       of the involved data-structures. (#1889)