Fix equality bug

Author: BenMusch

src/js/base/runtime.js

@@ -2440,13 +2440,16 @@ function (Namespace, jsnums, codePoint, util, exnStackParser, loader, seedrandom
 
     // JS function from Pyret values to Pyret equality answers
     function identical3(v1, v2) {
+      var v1IsRough = jsnums.isRoughnum(v1)
+      var v2IsRough = jsnums.isRoughnum(v2)
+
       if (isFunction(v1) && isFunction(v2)) {
         return thisRuntime.ffi.unknown.app("Functions", v1,  v2);
       } else if (isMethod(v1) && isMethod(v2)) {
         return thisRuntime.ffi.unknown.app('Methods', v1,  v2);
-      } else if (jsnums.isRoughnum(v1) && jsnums.isRoughnum(v2)) {
+      } else if (v1IsRough && v2IsRough) {
         return thisRuntime.ffi.unknown.app('Roughnums', v1,  v2);
-      } else if (v1 === v2 || (jsnums.isPyretNumber(v1) && jsnums.isPyretNumber(v2) && jsnums.equals(v1, v2))) {
+      } else if (v1 === v2 || (!(v1IsRough || v2IsRough) && jsnums.isPyretNumber(v1) && jsnums.isPyretNumber(v2) && jsnums.equals(v1, v2, NumberErrbacks))) {
         return thisRuntime.ffi.equal;
       } else {
         return thisRuntime.ffi.notEqual.app("", v1, v2);