implement expression_desc for Tagged_template

Author: tsnobip

jscomp/core/js_fold.ml

@@ -124,7 +124,10 @@ class fold =
           let _self = _self#expression _x0 in
           let _self = list (fun _self -> _self#expression) _self _x1 in
           _self
-      | Tagged_template (_, _, _) ->
+      | Tagged_template (_x0, _x1, _x2) ->
+          let _self = _self#expression _x0 in
+          let _self = list (fun _self -> _self#expression) _self _x1 in
+          let _self = list (fun _self -> _self#expression) _self _x2 in
           _self
       | String_index (_x0, _x1) ->
           let _self = _self#expression _x0 in