[turbofan] Check index type for potential element aliasing.

src/compiler/load-elimination.cc

Index: src/compiler/load-elimination.cc
diff --git a/src/compiler/load-elimination.cc b/src/compiler/load-elimination.cc
index 957859a94c5978f73522cb5e0bcedffc32e697bb..7c965bde92251a48e2633ae1d368324c064adfcf 100644
--- a/src/compiler/load-elimination.cc
+++ b/src/compiler/load-elimination.cc
@@ -216,7 +216,8 @@ LoadElimination::AbstractElements::Kill(Node* object, Node* index,
         DCHECK_NOT_NULL(element.index);
         DCHECK_NOT_NULL(element.value);
         if (!MayAlias(object, element.object) ||
-            !MayAlias(index, element.index)) {
+            !NodeProperties::GetType(index)->Maybe(
+                NodeProperties::GetType(element.index))) {
           that->elements_[that->next_index_++] = element;
         }
       }