DBC: Add missing deopt info after stack overflow checks.

runtime/observatory/tests/service/test_helper.dart

 // Copyright (c) 2013, 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.
 
 library test_helper;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 import 'package:observatory/service_io.dart';
@@ skipping 173 matching lines @@
 
     fullArgs.addAll(Platform.executableArguments);
     fullArgs.add('--observatory-port=0');
     fullArgs.add('--dart-flags=${dartFlags.join(' ')}');
     fullArgs.addAll(args);
 
     return _spawnCommon(dartExecutable, fullArgs);
   }
 
   Future<Process> _spawnCommon(String executable, List<String> arguments) {
-    print('** Launching $executable ${arguments.join(' ')}');
-    return Process.start(executable, arguments, environment: _TESTEE_SPAWN_ENV);
+    var environment = _TESTEE_SPAWN_ENV;
+    var bashEnvironment = new StringBuffer();
+    environment.forEach((k, v) => bashEnvironment.write("$k=$v "));
+    print('** Launching $bashEnvironment$executable ${arguments.join(' ')}');
+    return Process.start(executable, arguments, environment: environment);
   }
 
   Future<int> launch(bool pause_on_start,
                      bool pause_on_exit,
                      bool pause_on_unhandled_exceptions,
                      bool trace_service,
                      bool trace_compiler) {
     return _spawnProcess(pause_on_start,
                   pause_on_exit,
                   pause_on_unhandled_exceptions,
@@ skipping 114 matching lines @@
             bool pause_on_exit: false,
             bool trace_service: false,
             bool trace_compiler: false,
             bool verbose_vm: false,
             bool pause_on_unhandled_exceptions: false}) {
     var process = new _ServiceTesteeLauncher();
     process.launch(pause_on_start, pause_on_exit,
                    pause_on_unhandled_exceptions,
                    trace_service, trace_compiler).then((port) async {
       if (mainArgs.contains("--gdb")) {
-        port = 8181;
+        var pid = process.process.pid;
+        var wait = new Duration(seconds: 10);
+        print("Testee has pid $pid, waiting $wait before continuing");
       }
       serviceWebsocketAddress = 'ws://localhost:$port/ws';
       serviceHttpAddress = 'http://localhost:$port';
       var name = Platform.script.pathSegments.last;
       runZoned(() async {
         var vm =
             new WebSocketVM(new WebSocketVMTarget(serviceWebsocketAddress));
         print('Loading VM...');
         await vm.load();
         print('Done loading VM');
@@ skipping 138 matching lines @@
         mainArgs: mainArgs,
         vmTests: tests,
         pause_on_start: pause_on_start,
         pause_on_exit: pause_on_exit,
         trace_service: trace_service,
         trace_compiler: trace_compiler,
         verbose_vm: verbose_vm,
         pause_on_unhandled_exceptions: pause_on_unhandled_exceptions);
   }
 }