Eliminate redundant descriptor ElementTransitionAndStoreDescriptor.

src/ic/x64/access-compiler-x64.cc

Index: src/ic/x64/access-compiler-x64.cc
diff --git a/src/ic/x64/access-compiler-x64.cc b/src/ic/x64/access-compiler-x64.cc
index 6acc950bc0464ee73b1a4666d6ee660d540109f6..cadbf51b4a46ca4e8a8535fe9898339a0c902230 100644
--- a/src/ic/x64/access-compiler-x64.cc
+++ b/src/ic/x64/access-compiler-x64.cc
@@ -33,7 +33,7 @@ Register* PropertyAccessCompiler::store_calling_convention() {
   // receiver, name, scratch1, scratch2, scratch3.
   Register receiver = StoreDescriptor::ReceiverRegister();
   Register name = StoreDescriptor::NameRegister();
-  DCHECK(rbx.is(ElementTransitionAndStoreDescriptor::MapRegister()));
+  DCHECK(rbx.is(StoreTransitionDescriptor::MapRegister()));
   static Register registers[] = {receiver, name, rbx, rdi, r8};
   return registers;
 }