parsing error: function types associate to the right

Javascript/f.html

@@ -488,7 +488,7 @@
 						type =
 							tabs
 							/
-							tapp:tapp {return tapp.reduce((ret, val) => new Type("app", ret, val))}
+							tapp:tapp {return tapp.reduceRight((ret, val) => new Type("app", val, ret))}
 						tabs =
 							[∀\\\^] tvar_list:tvar_list "." type:type
 							{