Merge IO v2 branch to bleeding edge

tests/standalone/standalone.status

Index: tests/standalone/standalone.status
diff --git a/tests/standalone/standalone.status b/tests/standalone/standalone.status
index e4951bdb883087f74f226c84150edc0bd271299f..270875ba4523734e7b5fcbf889e9677beb082bdb 100644
--- a/tests/standalone/standalone.status
+++ b/tests/standalone/standalone.status
@@ -4,10 +4,25 @@
 
 package/invalid_uri_test: Fail, OK # Fails intentionally
 
+
+
+### Temporary IO library change disables, fail ###
+
 [ $runtime == vm ]
-package/package_isolate_test: Fail # Issue 7520.
+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/secure_server_client_certificate_test: fail
 io/web_socket_test: Fail, Pass # Issue 8495.
 
+####################################################
+
+
+
+[ $runtime == vm ]
+package/package_isolate_test: Fail # http://dartbug.com/7520.
+
 [ $runtime == vm && $system == linux ]
 io/http_proxy_test: Pass, Timeout # Issue 7773
 
@@ -48,7 +63,6 @@ io/process_non_ascii_test: Pass, Fail
 
 [ $runtime == vm && $system == windows ]
 io/file_system_links_test: Skip  # No links on Windows.
-io/socket_stream_close_test: Fail, Pass # Issue 8556.
 
 [ $compiler == none && $runtime == drt ]
 io/*: Skip # Don't run tests using dart:io in the browser