Bug: Runtime_GrowArrayElements provoked unnecessary lazy deopt.

src/runtime/runtime-array.cc

Index: src/runtime/runtime-array.cc
diff --git a/src/runtime/runtime-array.cc b/src/runtime/runtime-array.cc
index d40557474d361071e191b71c5912676ae18fa7fa..e22ea61de92fd5fd743f425eaa027972ed4ec390 100644
--- a/src/runtime/runtime-array.cc
+++ b/src/runtime/runtime-array.cc
@@ -1254,7 +1254,8 @@ RUNTIME_FUNCTION(Runtime_GrowArrayElements) {
 
   if (index >= capacity) {
     if (object->WouldConvertToSlowElements(index)) {
-      JSObject::NormalizeElements(object);
+      // We don't want to allow operations that cause lazy deopt. Return a Smi
+      // as a signal that optimized code should eagerly deoptimize.
       return Smi::FromInt(0);
     }