[heap] Test fixes

test/cctest/heap/test-mark-compact.cc

Index: test/cctest/heap/test-mark-compact.cc
diff --git a/test/cctest/heap/test-mark-compact.cc b/test/cctest/heap/test-mark-compact.cc
index a906d3473fec3b07ee78e43111faa94cb1895fe9..87b7c708f369552e67d929ac1a1f6e1e58633712 100644
--- a/test/cctest/heap/test-mark-compact.cc
+++ b/test/cctest/heap/test-mark-compact.cc
@@ -96,6 +96,10 @@ TEST(Promotion) {
 }
 
 HEAP_TEST(NoPromotion) {
+  // Page promotion allows pages to be moved to old space even in the case of
+  // OOM scenarios.
+  FLAG_page_promotion = false;
+
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   {