fixed a bug found by -Wshadow

Author: cdunn2001

src/lib_json/json_value.cpp

@@ -1128,8 +1128,8 @@ bool Value::removeIndex(ArrayIndex index, Value* removed) {
   ArrayIndex oldSize = size();
   // shift left all items left, into the place of the "removed"
   for (ArrayIndex i = index; i < (oldSize - 1); ++i){
-    CZString key(i);
-    (*value_.map_)[key] = (*this)[i + 1];
+    CZString keey(i);
+    (*value_.map_)[keey] = (*this)[i + 1];
   }
   // erase the last one ("leftover")
   CZString keyLast(oldSize - 1);