dart:io | Remove some test supressions, restore a macos supression section.

tests/standalone/standalone.status

 # Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 package/invalid_uri_test: Fail, OK # Fails intentionally
 
 [ $runtime == vm ]
 # Temporarily disabled until the test scripts are rewritten for
 # dart:io v2.
 io/skipping_dart2js_compilations_test: skip # Non-fatal process error.
 io/status_file_parser_test: fail
 io/test_runner_exit_code_test: fail
 io/test_runner_test: fail
-io/io/secure_socket_bad_certificate_test: pass, timeout # Issue 8791
 
 [ $runtime == vm ]
 io/https_client_test: Pass, Timeout # Issue 8674
 io/secure_server_client_certificate_test: Fail
 io/web_socket_test: Pass, Timeout # Issue 8824
 
 [ $runtime == vm && ( $system == windows ) ]
 io/web_socket_no_secure_test: Fail, Pass # Issue 8495.
 io/https_client_certificate_test: Pass, Timeout # Issue 8674
 io/raw_socket_test: Pass, Fail, Timeout # Issue 8675
 io/socket_test: Pass, Timeout # Issue 8676
 io/socket_exception_test: Pass, Timeout # Issue 8677
 io/https_server_test: Pass, Timeout # Issue 8674
 io/https_client_socket_reuse_test: Pass, Timeout # Issue 8674
 io/http_client_request_test: Pass, Fail # Issue 8681
 io/http_proxy_test: Pass, Timeout # Issue 7773
-io/raw_secure_socket_test: Pass, Fail # Issue 8795
-io/raw_secure_server_socket_test: Pass, Fail, Crash # Issues 8795, 7157
-io/raw_secure_socket_pause_test: Pass, Fail # Issue 8795
-io/secure_socket_test: Pass, Fail # Issue 8795
 
 [ $runtime == vm ]
 package/package_isolate_test: Fail # http://dartbug.com/7520.
 
+# Fails with a connection refused error on the buildbot.
+# Issue 8232.
+debugger/basic_debugger_test: Pass, Fail
+
+
 [ $runtime == vm && $checked ]
 # These tests have type errors on purpose.
 io/process_invalid_arguments_test: Fail, OK
 io/directory_invalid_arguments_test: Fail, OK
 io/file_invalid_arguments_test: Fail, OK
 io/socket_invalid_arguments_test: Fail, OK
 # These test have type errors on purpose and take very long to run in
 # checked mode with no benefit. Skip.
 io/file_fuzz_test: Skip
 io/directory_fuzz_test: Skip
 
 [ $runtime == vm && $system == macos ]
 io/regress_7191_test: Pass, Timeout # http://dartbug.com/8091
 
-[ $runtime == vm ]
-# Fails with a connection refused error on the buildbot.
-# Issue 8232.
-debugger/basic_debugger_test: Pass, Fail
-
 # This test fails with "Too many open files" on the Mac OS buildbot.
 # This is expected as MacOS by default runs with a very low number
 # of allowed open files ('ulimit -n' says something like 256).
 io/socket_many_connections_test: Skip
 
 # These tests pass on MacOS 10.8.2 but fails on the buildbot machines
 # that are running an earlier version of MacOS. The issue is that the
 # old version of MacOS does not expand the precomposed utf-8 it gets
 # from the VM before comparing it to the decomposed utf-8 used for the
 # file system.
@@ skipping 76 matching lines @@
 *: Skip
 
 [ $arch == simarm ]
 *: Skip
 
 [ $arch == mips ]
 *: Skip
 
 [ $arch == simmips ]
 *: Skip