Add utility tool to update .status files automatically

pkg/compiler/tool/status_files/update_all.sh

Index: pkg/compiler/tool/status_files/update_all.sh
diff --git a/pkg/compiler/tool/status_files/update_all.sh b/pkg/compiler/tool/status_files/update_all.sh
new file mode 100755
index 0000000000000000000000000000000000000000..dce652886055eac27007a03394af55c05b47ac0d
--- /dev/null
+++ b/pkg/compiler/tool/status_files/update_all.sh
@@ -0,0 +1,46 @@
+#!/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
+# $dart2js_with_kernel test configuration.
+
+set -e
+
+repodir=$(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"
+  ./tools/test.py -m release -c dart2js -r d8 \
+      --use-sdk --minified --dart2js-with-kernel \
+      $suite > $tmp/$suite-minified.txt
+
+  $dart $update_script minified $tmp/$suite-minified.txt
+
+  echo "running '$suite' host-checked tests"
+  ./tools/test.py -m release -c dart2js -r d8 --host-checked \
+    --dart2js-options="--library-root=$sdk" --dart2js-with-kernel \
+    $suite > $tmp/$suite-checked.txt
+
+  $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