Added irt extension support for supplying the nacl_irt_memory interface.

tests/irt_ext/libc/file_tests.c

 /*
  * Copyright (c) 2014 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
 #include "native_client/src/include/nacl_macros.h"
 #include "native_client/tests/irt_ext/error_report.h"
 #include "native_client/tests/irt_ext/file_desc.h"
-#include "native_client/tests/irt_ext/libc/file_tests.h"
+#include "native_client/tests/irt_ext/libc/libc_test.h"
 
 #define TEST_DIRECTORY "test_directory"
 
 typedef int (*TYPE_file_test)(void);
 static struct file_desc_environment g_file_desc_env;
 
 int do_mkdir_rmdir_test(void) {
   struct inode_data *parent_dir = NULL;
   struct inode_data *test_dir = NULL;
 
@@ skipping 103 matching lines @@
     irt_ext_test_print("File Tests Failed [%d/%d]\n", num_failures,
                        NACL_ARRAY_SIZE(g_file_tests));
   } else {
     irt_ext_test_print("File Tests Passed [%d/%d]\n",
                        NACL_ARRAY_SIZE(g_file_tests),
                        NACL_ARRAY_SIZE(g_file_tests));
   }
 
   return num_failures;
 }