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

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index f28839133358bdf2e4820691b79bf07bb9f7d727..ccfb5b1dfb360db4ce9e5ef27c66019e64e5a22a 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -123,7 +123,6 @@ class LCodeGen;
   V(Label)                                      \
   V(LazyBailout)                                \
   V(LoadContextSlot)                            \
-  V(LoadElements)                               \
   V(LoadExternalArrayPointer)                   \
   V(LoadFunctionPrototype)                      \
   V(LoadGlobalCell)                             \
@@ -1514,18 +1513,6 @@ class LLoadFunctionPrototype: public LTemplateInstruction<1, 1, 0> {
 };
 
 
-class LLoadElements: public LTemplateInstruction<1, 1, 0> {
- public:
-  explicit LLoadElements(LOperand* object) {
-    inputs_[0] = object;
-  }
-
-  LOperand* object() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(LoadElements, "load-elements")
-};
-
-
 class LLoadExternalArrayPointer: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LLoadExternalArrayPointer(LOperand* object) {