Change usage of old CreateInstance to use newer ConverTo<T> API

Author: mythz

src/ServiceStack.OrmLite/Async/ReadExpressionCommandExtensionsAsync.cs

@@ -155,7 +155,7 @@ internal static Task<long> RowCountAsync(this IDbCommand dbCmd, string sql, Canc
         internal static Task<T> ExprConvertToAsync<T>(this IDataReader dataReader, IOrmLiteDialectProvider dialectProvider, CancellationToken token)
         {
             return dialectProvider.ReaderRead(dataReader,
-                () => dataReader.CreateInstance<T>(dialectProvider), token);
+                () => dataReader.ConvertTo<T>(dialectProvider), token);
         }
 
         internal static Task<List<T>> ExprConvertToListAsync<T>(this IDataReader dataReader, IOrmLiteDialectProvider dialectProvider, CancellationToken token)

src/ServiceStack.OrmLite/Expressions/ReadExpressionCommandExtensions.cs

@@ -154,22 +154,10 @@ internal static T ExprConvertTo<T>(this IDataReader dataReader, IOrmLiteDialectP
         {
             using (dataReader)
             {
-                return dataReader.Read() ? dataReader.CreateInstance<T>(dialectProvider) : default(T);
+                return dataReader.Read() ? dataReader.ConvertTo<T>(dialectProvider) : default(T);
             }
         }
 
-        internal static T CreateInstance<T>(this IDataReader dataReader, IOrmLiteDialectProvider dialectProvider)
-        {
-            var row = OrmLiteUtilExtensions.CreateInstance<T>();
-            var fieldDefs = ModelDefinition<T>.Definition.AllFieldDefinitionsArray;
-            foreach (var fieldDef in fieldDefs)
-            {
-                var index = dataReader.FindColumnIndex(dialectProvider, fieldDef);
-                dialectProvider.SetDbValue(fieldDef, dataReader, index, row);
-            }
-            return row;
-        }
-
         internal static List<T> ExprConvertToList<T>(this IDataReader dataReader, IOrmLiteDialectProvider dialectProvider)
         {
             var fieldDefs = ModelDefinition<T>.Definition.AllFieldDefinitionsArray;