Some tests involving AllocationSites are failing in GcStress test mode.

test/mjsunit/array-constructor-feedback.js

Index: test/mjsunit/array-constructor-feedback.js
diff --git a/test/mjsunit/array-constructor-feedback.js b/test/mjsunit/array-constructor-feedback.js
index e29e7694654ea0b3e4ceb2cb3e9c06ecfe0d8dab..734d510a0c58929279d182b2c7e645a90169a681 100644
--- a/test/mjsunit/array-constructor-feedback.js
+++ b/test/mjsunit/array-constructor-feedback.js
@@ -35,6 +35,11 @@
 // in this test case.  Depending on whether smi-only arrays are actually
 // enabled, this test takes the appropriate code path to check smi-only arrays.
 
+// Reset the GC stress mode to be off. Needed because AllocationMementos only
+// live for one gc, so a gc that happens in certain fragile areas of the test
+// can break assumptions.
+%SetFlags("--gc-interval=-1")
+
 // support_smi_only_arrays = %HasFastSmiElements(new Array(1,2,3,4,5,6,7,8));
 support_smi_only_arrays = true;