Adjust expectations of library_env_test to take into account noopt, precompiled and product mode.

tests/language/language.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.
 
 # This directory contains tests that are intended to show the
 # current state of the language.
 
 [ ($compiler == none || $compiler == precompiler || $compiler == dart2app) ]
 tearoff_constructor_basic_test: Skip # Crashes in checked mode -- hausner investigating
 
@@ skipping 163 matching lines @@
 
 [ $runtime == dart_product ]
 # Deferred loading happens eagerly (not sure why this works on precompiled code).
 deferred_static_seperate_test: Skip
 deferred_constraints_type_annotation_test/new_before_load: Skip
 regress_22443_test: Skip
 
 [ $runtime == vm && $mode == product ]
 vm/type_vm_test: Fail,OK  # Expects exact type name.
 
-[ $compiler == none && $browser ]
+[ ($compiler == none || $compiler == precompiler || $compiler == dart2app) && $browser ]
 # The following tests are supposed to fail.
 library_env_test/has_io_support: RuntimeError, OK
 library_env_test/has_no_html_support: RuntimeError, OK
-library_env_test/has_no_mirror_support: RuntimeError, OK
 
-[ $compiler == none && $browser != true ]
+[ ($compiler == none || $compiler == precompiler || $compiler == dart2app) && $browser != true ]
 # The following tests are supposed to fail.
 library_env_test/has_html_support: RuntimeError, OK
 library_env_test/has_no_io_support: RuntimeError, OK
+
+[ $compiler == none && $noopt == false && $mode != product ]
+# The following tests are supposed to fail.
 library_env_test/has_no_mirror_support: RuntimeError, OK
+
+[ $noopt || $compiler == precompiler || $mode == product ]
+# The following tests are supposed to fail.
+library_env_test/has_mirror_support: RuntimeError, OK