Second try: fix dartium status file to exclude lib/mirrors/deferred tests

tests/lib/lib.status

 # Copyright (c) 2012, 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.
 
 [ $checked && $compiler != dartanalyzer && $compiler != dart2analyzer && $runtime != dartium ]
 mirrors/regress_16321_test/01: CompileTimeError # Issue 16351
 
 [ $checked && $compiler == none && ($runtime == dartium || $runtime == drt) ]
 mirrors/regress_16321_test/01: RunTimeError # Issue 16351
 
@@ skipping 257 matching lines @@
 convert/chunked_conversion_utf88_test: Skip  # Pass, Slow Issue 12025.
 convert/streamed_conversion_json_utf8_decode_test: Skip  # Pass, Slow
 
 [ $arch == simarm ]
 convert/chunked_conversion_utf88_test: Skip  # Pass, Slow Issue 12644.
 convert/utf85_test: Skip  # Pass, Slow Issue 12644.
 
 [ $compiler == none && $runtime == dartium ]
 async/schedule_microtask5_test: Pass, Timeout # Issue 13719: Please triage this failure.
 async/timer_cancel2_test: Pass, Timeout # Issue 13719: Please triage this failure.
-lib/deferred*: Skip # Lazy deferred loading not yet implemented.
+mirrors/deferred*: Skip # Lazy deferred loading not yet implemented. Issue 19449
 
 [ $compiler == none && ($runtime == drt || $runtime == dartium) ]
 # Issue 13921: spawnFunction is not allowed on Dartium's DOM thread.
 async/timer_isolate_test: Fail
 
 [ $compiler == dart2dart || ($compiler == none && ($runtime == drt || $runtime == dartium || $runtime == vm || $runtime == ContentShellOnAndroid)) ]
 # Deferred loading is not implemented in the VM so the error-handling will never be triggered.
 async/deferred/deferred_fail_to_load_test: Fail
 # Deferred loading is not implemented in the VM so the error-handling will never be triggered.
 # Issue 13921: spawnFunction is not allowed on Dartium's DOM thread.
@@ skipping 20 matching lines @@
 mirrors/removed_api_test: StaticWarning, OK # Deliberately refers to undeclared members.
 
 mirrors/deferred_mirrors_metadata_test: Fail # Issue 17522
 
 [ $compiler == dart2js && $runtime == d8 && $system == windows ]
 async/*deferred*: Skip # Issue 17458
 mirrors/*deferred*: Skip # Issue 17458
 
 [ $compiler == dart2js && $mode == debug ]
 mirrors/native_class_test: Pass, Slow