Consolidated all the key store/load classes in the Hydrogen and Lithium

src/arm/lithium-codegen-arm.h

Index: src/arm/lithium-codegen-arm.h
diff --git a/src/arm/lithium-codegen-arm.h b/src/arm/lithium-codegen-arm.h
index 9281537c1eca5ad2a27087f2dd333f96de6799d2..4c3bc532a6ccbda0a00394ca14d404229bae58f3 100644
--- a/src/arm/lithium-codegen-arm.h
+++ b/src/arm/lithium-codegen-arm.h
@@ -377,6 +377,12 @@ class LCodeGen BASE_EMBEDDED {
   };
 
   void EnsureSpaceForLazyDeopt();
+  void DoLoadKeyedExternal(LLoadKeyed* instr);
+  void DoLoadKeyedDouble(LLoadKeyed* instr);
+  void DoLoadKeyedFixed(LLoadKeyed* instr);
+  void DoStoreKeyedExternal(LStoreKeyed* instr);
+  void DoStoreKeyedDouble(LStoreKeyed* instr);
+  void DoStoreKeyedFixed(LStoreKeyed* instr);
 
   Zone* zone_;
   LPlatformChunk* const chunk_;