Update hkmc2/shared/src/main/scala/hkmc2/codegen/js/JSBuilder.scala

Co-authored-by: Lionel Parreaux <lionel.parreaux@gmail.com>

Author: FlandiaYingman

hkmc2/shared/src/main/scala/hkmc2/codegen/js/JSBuilder.scala

@@ -106,10 +106,9 @@ class JSBuilder extends CodeBuilder:
           TODO("getters")
         case TermDefn(syntax.Fun, sym, ParamList(_, ps) :: pss, bod) =>
           val paramList = ps.map(p => scope.allocateName(p.sym)).mkDocument(", ")
-          val result = pss.foldRight(bod)({ 
+          val result = pss.foldRight(bod):
             case (ParamList(_, ps), block) => 
               Return(Lam(ps, block), false)
-          })
           doc"function ${sym.nme}(${paramList}) { #{  # ${body(result)} #}  # }"
         case ClsDefn(sym, syntax.Cls, mtds, flds, ctor) =>
           val clsDefn = sym.defn.getOrElse(die)