Gardening: mark regexp pcre_test slow/timeout in precompiled code

tests/corelib/corelib.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.
 
 [ $compiler == none && ($runtime == drt || $runtime == dartium) ]
 bool_from_environment2_test: Skip
 bool_from_environment_test: Skip
 from_environment_const_type_test: Skip
 from_environment_const_type_undefined_test: Skip
 int_from_environment2_test: Skip
@@ skipping 142 matching lines @@
 
 [ $system == windows && $arch == x64 ]
 stopwatch_test: Skip  # Flaky test due to expected performance behaviour.
 
 [ $runtime != d8 && $runtime != vm && $runtime != dart_precompiled ]
 # The regexp tests are not verified to work on non d8/vm platforms yet.
 regexp/*: Skip
 
 [ $runtime == vm || $runtime == dart_precompiled ]
 regexp/global_test: Skip # Timeout. Issue 21709 and 21708
+regexp/pcre_test: Pass, Slow, Timeout # Issues 21593 and 22008
 
 [ $runtime != vm && $runtime != dart_precompiled && $compiler != dart2analyzer]
 data_resource_test: RuntimeError # Issue 23825 (not implemented yet).
 file_resource_test: Skip, OK # VM specific test, uses dart:io.
 http_resource_test: Skip, OK # VM specific test, uses dart:io.
 
 [ $compiler == dart2js && $browser == false ]
 package_resource_test: RuntimeError # Issue 26842
 
 [ $mode == debug ]
@@ skipping 33 matching lines @@
 package_resource_test: Skip # Resolve URI not supported yet in product mode.
 file_resource_test: Skip # Resolve URI not supported yet in product mode.
 http_resource_test: Skip # Resolve URI not supported yet in product mode.
 
 [ $arch == simdbc || $arch == simdbc64 ]
 regexp/stack-overflow_test: RuntimeError, OK # Smaller limit with irregex interpreter
 
 [ $hot_reload || $hot_reload_rollback ]
 big_integer_parsed_mul_div_vm_test: Pass, Slow # Slow.