non-breaking way of hooking up placeholder bigint type

Author: cristianoc

jscomp/others/js_types.ml

@@ -27,7 +27,7 @@
 type symbol
 (** Js symbol type only available in ES6 *)
 
-type bigint_val
+type bigint_val = Js_bigint.t
 (** Js bigint type only available in ES2020 *)
 
 type obj_val

jscomp/others/release.ninja

@@ -53,7 +53,7 @@ o others/js_string.cmi others/js_string.cmj : cc others/js_string.ml | others/be
 o others/js_string2.cmi others/js_string2.cmj : cc others/js_string2.ml | others/belt_internals.cmi others/js.cmi others/js_array2.cmj others/js_re.cmj $bsc
 o others/js_typed_array.cmi others/js_typed_array.cmj : cc others/js_typed_array.ml | others/belt_internals.cmi others/js.cmi others/js.cmj others/js_typed_array2.cmj $bsc
 o others/js_typed_array2.cmi others/js_typed_array2.cmj : cc others/js_typed_array2.ml | others/belt_internals.cmi others/js.cmi others/js.cmj $bsc
-o others/js_types.cmj : cc_cmi others/js_types.ml | others/belt_internals.cmi others/js.cmi others/js.cmj others/js_null.cmj others/js_types.cmi $bsc
+o others/js_types.cmj : cc_cmi others/js_types.ml | others/belt_internals.cmi others/js.cmi others/js.cmj others/js_bigint.cmj others/js_null.cmj others/js_types.cmi $bsc
 o others/js_types.cmi : cc others/js_types.mli | others/belt_internals.cmi others/js.cmi $bsc
 o others/js_undefined.cmj : cc_cmi others/js_undefined.ml | others/belt_internals.cmi others/js.cmi others/js.cmj others/js_exn.cmj others/js_undefined.cmi $bsc
 o others/js_undefined.cmi : cc others/js_undefined.mli | others/belt_internals.cmi others/js.cmi others/js.cmj $bsc