refactor: remove option type from J.New (#1201)

* refactor: remove option type from J.New

* don't match

jscomp/core/j.ml

@@ -130,8 +130,7 @@ and expression_desc =
         All exported declarations have to be OCaml identifiers
      2. Javascript dot (need to be preserved/or using quote)
   *)
-  | New of { expr : expression; args : expression list option }
-    (* TODO: option remove *)
+  | New of { expr : expression; args : expression list }
   | Var of vident
   | Fun of {
       method_ : bool;

jscomp/core/js_dump.ml

@@ -892,8 +892,7 @@ and expression_desc cxt ~(level : int) x : cxt =
               string cxt L.new_;
               space cxt;
               let cxt = expression ~level:16 cxt e in
-              paren_group cxt 1 (fun _ ->
-                  match el with Some el -> arguments cxt el | None -> cxt)))
+              paren_group cxt 1 (fun _ -> arguments cxt el)))
   | Cond { pred = e; then_ = e1; else_ = e2 } ->
       let action () =
         let cxt = expression ~level:3 cxt e in

jscomp/core/js_exp_make.ml

@@ -205,7 +205,7 @@ let typeof ?loc ?comment (e : t) : t =
   | _ -> make_expression ?loc ?comment (Typeof e)
 
 let new_ ?loc ?comment e0 args : t =
-  make_expression ?loc ?comment (New { expr = e0; args = Some args })
+  make_expression ?loc ?comment (New { expr = e0; args })
 
 let unit : t = make_expression Undefined