Disable test for jit-on-first-use.

Bug: 216762268
Test: 835-b216762268
Change-Id: Ibb391419a6dd47a21ffbf8e9921d45f2e3a63b1b
diff --git a/test/knownfailures.json b/test/knownfailures.json
index 377d8e7..b56d727 100644
--- a/test/knownfailures.json
+++ b/test/knownfailures.json
@@ -1477,7 +1477,7 @@
     },
     {
         "tests": ["835-b216762268"],
-        "variant": "jit | optimizing",
+        "variant": "jit | optimizing | jit-on-first-use",
         "bug": "b/216762268",
         "description": ["bug in the loop optimization"]
     }