Ensure that executable pages are properly guarded.

test/cctest/test-spaces.cc

Index: test/cctest/test-spaces.cc
diff --git a/test/cctest/test-spaces.cc b/test/cctest/test-spaces.cc
index 6e495bc169df00e5e93d6068ee8f75f8860540db..92de2a60fa4291a014439952f906c3244d1a865d 100644
--- a/test/cctest/test-spaces.cc
+++ b/test/cctest/test-spaces.cc
@@ -191,9 +191,10 @@ TEST(NewSpace) {
                         HEAP->ReservedSemiSpaceSize()));
   CHECK(new_space.HasBeenSetUp());
 
-  while (new_space.Available() >= Page::kMaxHeapObjectSize) {
+  while (new_space.Available() >= Page::kMaxNonCodeHeapObjectSize) {
     Object* obj =
-        new_space.AllocateRaw(Page::kMaxHeapObjectSize)->ToObjectUnchecked();
+        new_space.AllocateRaw(Page::kMaxNonCodeHeapObjectSize)->
+        ToObjectUnchecked();
     CHECK(new_space.Contains(HeapObject::cast(obj)));
   }
 
@@ -223,7 +224,7 @@ TEST(OldSpace) {
   CHECK(s->SetUp());
 
   while (s->Available() > 0) {
-    s->AllocateRaw(Page::kMaxHeapObjectSize)->ToObjectUnchecked();
+    s->AllocateRaw(Page::kMaxNonCodeHeapObjectSize)->ToObjectUnchecked();
   }
 
   s->TearDown();