Fix printing of ArrayBoilerplateDescription

Change-Id: I5fcf6ca7974d2af9ab59b1d82dc6996322794f73
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2874446
Auto-Submit: Georg Neis <neis@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74391}

src/diagnostics/objects-printer.cc

@@ -1784,7 +1784,7 @@ void ClassPositions::ClassPositionsPrint(std::ostream& os) {  // NOLINT
 void ArrayBoilerplateDescription::ArrayBoilerplateDescriptionPrint(
     std::ostream& os) {  // NOLINT
   PrintHeader(os, "ArrayBoilerplateDescription");
-  os << "\n - elements kind: " << elements_kind();
+  os << "\n - elements kind: " << ElementsKindToString(elements_kind());
   os << "\n - constant elements: " << Brief(constant_elements());
   os << "\n";
 }