Remove HLoadElements instruction and replace with use of more general HLoadNamedField.

src/code-stubs-hydrogen.cc

Index: src/code-stubs-hydrogen.cc
diff --git a/src/code-stubs-hydrogen.cc b/src/code-stubs-hydrogen.cc
index 04b9a46fc71a967d5608f980d050c92628fc6326..e834b24b2bf23cd5cbb0cd3264c622ff4f028c90 100644
--- a/src/code-stubs-hydrogen.cc
+++ b/src/code-stubs-hydrogen.cc
@@ -290,8 +290,7 @@ HValue* CodeStubGraphBuilder<FastCloneShallowArrayStub>::BuildCodeStub() {
   checker.Then();
 
   if (mode == FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS) {
-    HValue* elements =
-        AddInstruction(new(zone) HLoadElements(boilerplate, NULL));
+    HValue* elements = AddLoadElements(boilerplate);
 
     IfBuilder if_fixed_cow(this);
     if_fixed_cow.IfCompareMap(elements, factory->fixed_cow_array_map());
@@ -453,8 +452,7 @@ HValue* CodeStubGraphBuilder<TransitionElementsKindStub>::BuildCodeStub() {
 
   if_builder.Else();
 
-  HInstruction* elements =
-      AddInstruction(new(zone) HLoadElements(js_array, js_array));
+  HInstruction* elements = AddLoadElements(js_array);
 
   HInstruction* elements_length =
       AddInstruction(new(zone) HFixedArrayBaseLength(elements));