Make dart:io unit-tests pass the analyzer.

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 38 matching lines @@
 typed_data_isolate_test: Skip # This test uses dart:io
 io/*: Skip # Don't run tests using dart:io in the browser
 package/*: Skip # Do not run those in Dartium.
 debugger/*: Skip # Do not run standalone debugger tests in browser.
 coverage_test: Skip
 http_launch_test: Skip
 vmservice/*: Skip # Do not run standalone vm service tests in browser.
 issue14236_test: Skip # Issue 14236 Script snapshots do not work in the browser.
 
 
-[ $compiler == dartanalyzer ]
+[ $compiler == dartanalyzer || $compiler == dart2analyzer ]
 javascript_int_overflow_literal_test/01: fail, ok
 issue14236_test: Skip # Analyzer can't handle Script snapshots.
 
 # test issue https://code.google.com/p/dart/issues/detail?id=11518
 io/file_constructor_test: fail
 
-# The dart:io library is created at build time from separate files, and
-# there is no language-spec compatible way to run unit tests on the private
-# members and methods of dart:io.
-# Dart analyzer spots the misuse of 'part' directives in these unit tests.
-io/http_headers_test: Skip
-io/http_cookie_date_test: Skip
-io/http_parser_test: Skip
-io/web_socket_protocol_processor_test: Skip
-
 # This is runtime test.
 io/process_exit_negative_test: Skip
 
-[ $compiler == dart2analyzer ]
-javascript_int_overflow_literal_test/01: fail, ok
-issue14236_test: Skip # Analyzer can't handle Script snapshots.
-
-# test issue https://code.google.com/p/dart/issues/detail?id=11518
-io/file_constructor_test: fail
-
-# The dart:io library is created at build time from separate files, and
-# there is no language-spec compatible way to run unit tests on the private
-# members and methods of dart:io.
-# Dart analyzer spots the misuse of 'part' directives in these unit tests.
-io/http_headers_test: Skip
-io/http_cookie_date_test: Skip
-io/http_parser_test: Skip
-io/web_socket_protocol_processor_test: Skip
-
-# This is runtime test.
-io/process_exit_negative_test: Skip
 
 [ $compiler == dart2js ]
 number_identity_test: Skip # Bigints and int/double diff. not supported.
 typed_data_test: Skip # dart:typed_data support needed.
 bytedata_test: Skip # dart:typed_data support needed.
 typed_data_view_test: Skip # dart:typed_data support needed.
 typed_data_isolate_test: Skip # dart:typed_data support needed.
 typed_array_int64_uint64_test: Skip # dart:typed_data on dart2js does not support 64-bit ints.
 float_array_test: Skip # dart:typed_data support needed.
 int_array_test: Skip  # dart:typed_data support needed.
@@ skipping 69 matching lines @@
 io/raw_secure_server_socket_argument_test: StaticWarning
 io/secure_socket_argument_test: StaticWarning
 io/skipping_dart2js_compilations_test: CompileTimeError, StaticWarning
 io/stdout_bad_argument_test: StaticWarning
 io/test_runner_test: CompileTimeError, StaticWarning
 package/package1_test: StaticWarning
 package/package_test: StaticWarning
 typed_data_test: StaticWarning
 typed_data_view_test: StaticWarning