Revert and fix more of the mac change.

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.
 
 # WARNING:
 # Tests using the multitest feature where failure is expected should *also* be
 # listed in tests/lib/analyzer/analyze_tests.status without the "standalone"
 # prefix.
 
 package/invalid_uri_test: Fail, OK # CompileTimeErrors intentionally
@@ skipping 24 matching lines @@
 # 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 ]
 # 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
+io/platform_executable_test/06: RuntimeError
 
 [ $compiler == none && ($runtime == drt || $runtime == dartium || $runtime == ContentShellOnAndroid) ]
 typed_array_test: Fail # Issue 13921
 typed_array_int64_uint64_test: Fail # Issue 13921
 typed_data_isolate_test: SkipByDesign # This test uses dart:io
 io/*: SkipByDesign # Don't run tests using dart:io in the browser
 package/*: Skip # Do not run those in Dartium.
 debugger/*: SkipByDesign # Do not run standalone debugger tests in browser.
 coverage_test: Skip
 full_coverage_test: Skip
@@ skipping 194 matching lines @@
 io/socket_upgrade_to_secure_test: Crash # Please triage this failure.
 io/stdout_stderr_terminal_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/test_extension_fail_test: Crash #  Unhandled node
 io/test_extension_test: Crash #  Unhandled node
 io/test_runner_test: Crash #  Unhandled node
 io/uri_platform_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/web_socket_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/windows_file_system_links_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/zlib_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 priority_queue_stress_test: RuntimeError # Please triage this failure.