[turbofan] Enable TurboFan when compiling JS runtime calls.

src/ast/ast-numbering.cc

Index: src/ast/ast-numbering.cc
diff --git a/src/ast/ast-numbering.cc b/src/ast/ast-numbering.cc
index ce73e3d850dc7b22be9f6e4e310254f623767f97..9c3aa04f0e9e15b7adfab13aa2ab184ba893952f 100644
--- a/src/ast/ast-numbering.cc
+++ b/src/ast/ast-numbering.cc
@@ -268,7 +268,7 @@ void AstNumberingVisitor::VisitCallRuntime(CallRuntime* node) {
   ReserveFeedbackSlots(node);
   if (node->is_jsruntime()) {
     // Don't try to optimize JS runtime calls because we bailout on them.
-    DisableOptimization(kCallToAJavaScriptRuntimeFunction);
+    DisableCrankshaft(kCallToAJavaScriptRuntimeFunction);
   }
   node->set_base_id(ReserveIdRange(CallRuntime::num_ids()));
   VisitArguments(node->arguments());