Update V8 to r5675 as required by WebKit r70209

Change-Id: Ib10adb470d41ca8c109ead5fc893b880e18d489f
diff --git a/test/cctest/test-log.cc b/test/cctest/test-log.cc
index b364ae3..16d0f00 100644
--- a/test/cctest/test-log.cc
+++ b/test/cctest/test-log.cc
@@ -469,7 +469,7 @@
   CHECK(!sampler.WasSampleStackCalled());
   nonJsThread.WaitForRunning();
   nonJsThread.SendSigProf();
-  CHECK(sampler.WaitForTick());
+  CHECK(!sampler.WaitForTick());
   CHECK(!sampler.WasSampleStackCalled());
   sampler.Stop();