Filter unreachable libraries in kernel loader

pkg/compiler/tool/status_files/update_all.sh

 #!/usr/bin/env bash
 # Copyright (c) 2017, 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.
 
 # Script to update the dart2js status lines for all tests running with the
 # $dart2js_with_kernel test configuration.
 
 repodir=$(cd $(dirname ${BASH_SOURCE[0]})/../../../../; pwd)
 dart="out/ReleaseX64/dart"
 update_script=$(dirname ${BASH_SOURCE[0]})/update_from_log.dart
 sdk="out/ReleaseX64/dart-sdk"
 
 tmp=$(mktemp -d)
 
 function update_suite {
   local suite=$1
-  echo "running '$suite' minified tests"
+  echo -e "\nupdate suite: $suite"
+  echo "  - minified tests"
   ./tools/test.py -m release -c dart2js -r d8 --dart2js-batch \
       --use-sdk --minified --dart2js-with-kernel \
       $suite > $tmp/$suite-minified.txt
-
-  echo "processing '$suite' minified tests status changes"
   $dart $update_script minified $tmp/$suite-minified.txt
 
-  echo "running '$suite' host-checked tests"
+  echo "  - host-checked tests"
   ./tools/test.py -m release -c dart2js -r d8 --dart2js-batch --host-checked \
     --dart2js-options="--library-root=$sdk" --dart2js-with-kernel \
     $suite > $tmp/$suite-checked.txt
-
-  echo "processing '$suite' checked tests status changes"
   $dart $update_script checked $tmp/$suite-checked.txt
 }
 
 
 pushd $repodir > /dev/null
 ./tools/build.py -m release create_sdk
 update_suite dart2js_native
 update_suite dart2js_extra
 update_suite language
 update_suite language_2
 update_suite corelib
 update_suite corelib_2
 
 rm -rf $tmp
 popd > /dev/null