interactive prompt can handle polymorphic types

lib/symbol.js

@@ -3,20 +3,17 @@ import { Bool, SymbolT, Type } from "../primitives/types.js";
 import { String } from "../structures/list.js";
 import { typedFnType } from "../structures/types.js";
 
+// The way instances of SymbolT are currently encoded, their constructor is not a valid DOPE function, because it is impure.
+// The only way to construct symbols is to do it in JS code.
+
 export const ModuleSymbol = {l:[
   {i: SymbolT, t: Type},
 
-  // ...typedFnType(constructSymbol, fnType =>
-  //   fnType
-  //     (String)
-  //     (SymbolT)
-  // ),
-
   ...typedFnType(getName, fnType =>
     fnType
       (SymbolT)
       (String)
   ),
 
-  ...typedFnType(eqSymbol, fnType => fnType(SymbolT, fnType(SymbolT, Bool))),
+  ...typedFnType(eqSymbol, fnType => fnType(SymbolT)(fnType(SymbolT)(Bool))),
 ]};