Ensure that executable pages are properly guarded.

src/objects-visiting.h

Index: src/objects-visiting.h
diff --git a/src/objects-visiting.h b/src/objects-visiting.h
index e6ddfed4a7d2ab04ccaf12ba69aeb1665125e0a7..26e79ae5eddf4b1bde097ff62d9c4c54b150787f 100644
--- a/src/objects-visiting.h
+++ b/src/objects-visiting.h
@@ -135,7 +135,7 @@ class StaticVisitorBase : public AllStatic {
            (base == kVisitJSObject));
     ASSERT(IsAligned(object_size, kPointerSize));
     ASSERT(kMinObjectSizeInWords * kPointerSize <= object_size);
-    ASSERT(object_size < Page::kMaxHeapObjectSize);
+    ASSERT(object_size < Page::kMaxNonCodeHeapObjectSize);
 
     const VisitorId specialization = static_cast<VisitorId>(
         base + (object_size >> kPointerSizeLog2) - kMinObjectSizeInWords);