[tests] Cleanup tests that use assertOptimized()/assertUnoptimized().

test/cctest/heap/test-heap.cc

Index: test/cctest/heap/test-heap.cc
diff --git a/test/cctest/heap/test-heap.cc b/test/cctest/heap/test-heap.cc
index 87e9838ea61fe2870c5b4cbdd1394877432d7823..145ad3dab4727e33bc7ff62b016841bf2e55d7df 100644
--- a/test/cctest/heap/test-heap.cc
+++ b/test/cctest/heap/test-heap.cc
@@ -4181,8 +4181,8 @@ TEST(Regress169209) {
 
 
 TEST(Regress169928) {
+  if (!i::FLAG_crankshaft) return;

[Michael Starzinger, 2017/01/26 16:51:46]

This looks fishy, the test _disabled_ optimization before. Now it only runs when
optimization is _enabled_.

[Igor Sheludko, 2017/01/26 17:01:40]

Done.

   i::FLAG_allow_natives_syntax = true;
-  i::FLAG_crankshaft = false;
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   LocalContext env;