Bug 1098700 - Mochitests that are annotated fails-if don't output a useful error if they unexpectedly pass. r=jmaher

testing/mochitest/tests/SimpleTest/SimpleTest.js

@@ -259,7 +259,7 @@ SimpleTest.ok = function (condition, name, diag) {
         SimpleTest.num_failed++;
         test.result = !test.result;
       }
-      var successInfo = {status:"PASS", expected:"PASS", message:"TEST-PASS"};
+      var successInfo = {status:"PASS", expected:"FAIL", message:"TEST-UNEXPECTED-PASS"};
       var failureInfo = {status:"FAIL", expected:"FAIL", message:"TEST-KNOWN-FAIL"};
     } else {
       var successInfo = {status:"PASS", expected:"PASS", message:"TEST-PASS"};