Revert "Avoid to run dart code during paused_on_exit"

runtime/observatory/tests/service/issue_30555_test.dart

Index: runtime/observatory/tests/service/issue_30555_test.dart
diff --git a/runtime/observatory/tests/service/issue_30555_test.dart b/runtime/observatory/tests/service/issue_30555_test.dart
deleted file mode 100644
index 72a5701385e1b1d0425099787a7575d1615e3984..0000000000000000000000000000000000000000
--- a/runtime/observatory/tests/service/issue_30555_test.dart
+++ /dev/null
@@ -1,152 +0,0 @@
-// 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.
-// VMOptions=--error_on_bad_type --error_on_bad_override
-
-import 'dart:async';
-import 'dart:developer';
-import 'package:observatory/models.dart' as M;
-import 'package:observatory/service_io.dart';
-import 'package:unittest/unittest.dart';
-import 'test_helper.dart';
-
-import "dart:isolate" as dart;
-
-void isolate(dart.SendPort port) {
-  dart.RawReceivePort receive = new dart.RawReceivePort((_) {
-    debugger();
-    throw new Exception();
-  });
-  port.send(receive.sendPort);
-}
-
-void test() {
-  dart.RawReceivePort receive = new dart.RawReceivePort((port) {
-    debugger();
-    port.send(null);
-    debugger();
-    port.send(null);
-    debugger();
-  });
-  dart.Isolate.spawn(isolate, receive.sendPort);
-}
-
-var tests = [
-  (VM vm) async {
-    await vm.load();
-    int step = 0;
-    var completer = new Completer();
-    var sub;
-    sub = await vm.listenEventStream("Debug", (ServiceEvent c) {
-      switch (step) {
-        case 0:
-          if (c.kind == "PauseStart") {
-            // We have intercepted the first isolate pause on start.
-            // So the isolate was loading during initialization.
-            // We will resume here.
-            vm.isolates[0].resume();
-            return;
-          }
-          expect(c.kind, equals("Resume"),
-              reason: "First isolate should resume");
-          expect(c.isolate.id, equals(vm.isolates[0].id),
-              reason: "First isolate should resume");
-          break;
-        case 1:
-          expect(c.kind, equals("PauseStart"),
-              reason: "Second isolate should pause on start");
-          expect(c.isolate.id, equals(vm.isolates[1].id),
-              reason: "Second isolate should pause on start");
-          vm.isolates[1].resume();
-          break;
-        case 2:
-          expect(c.kind, equals("Resume"),
-              reason: "Second isolate should resume");
-          expect(c.isolate.id, equals(vm.isolates[1].id),
-              reason: "Second isolate should resume");
-          break;
-        case 3:
-          expect(c.kind, equals("PauseBreakpoint"),
-              reason: "First isolate should stop at debugger()");
-          expect(c.isolate.id, equals(vm.isolates[0].id),
-              reason: "First isolate should stop at debugger()");
-          vm.isolates[0].resume();
-          break;
-        case 4:
-          expect(c.kind, equals("Resume"),
-              reason: "First isolate should resume (1)");
-          expect(c.isolate.id, equals(vm.isolates[0].id),
-              reason: "First isolate should resume (1)");
-          break;
-        case 5:
-          expect(c.kind, equals("PauseBreakpoint"),
-              reason: "First & Second isolate should stop at debugger()");
-          break;
-        case 6:
-          expect(c.kind, equals("PauseBreakpoint"),
-              reason: "First & Second isolate should stop at debugger()");
-          vm.isolates[1].resume();
-          break;
-        case 7:
-          expect(c.kind, equals("Resume"),
-              reason: "Second isolate should resume before the exception");
-          expect(c.isolate.id, equals(vm.isolates[1].id),
-              reason: "Second isolate should resume before the exception");
-          break;
-        case 8:
-          expect(c.kind, equals("PauseExit"),
-              reason: "Second isolate should exit at the exception");
-          expect(c.isolate.id, equals(vm.isolates[1].id),
-              reason: "Second isolate should exit at the exception");
-          vm.isolates[0].resume();
-          break;
-        case 9:
-          expect(c.kind, equals("Resume"),
-              reason: "First isolate should resume after the exception");
-          expect(c.isolate.id, equals(vm.isolates[0].id),
-              reason: "First isolate should resume after the exception");
-          break;
-        case 10:
-          expect(c.kind, equals("PauseBreakpoint"),
-              reason: "First isolate "
-                  "should stop at debugger() after exception.\n"
-                  "Probably the second resumed even though it was not expect "
-                  "to do it.");
-          expect(c.isolate.id, equals(vm.isolates[0].id),
-              reason: "First "
-                  "isolate should stop at debugger() after exception.\n"
-                  "Probably the second resumed even though it was not expect "
-                  "to do it.");
-          completer.complete();
-          break;
-        default:
-          expect(false, isTrue,
-              reason: "Shouldn't get here, the second "
-                  "isolate resumed even though it was not expect to do it");
-          break;
-      }
-      step++;
-    });
-    switch (vm.isolates[0].status) {
-      case M.IsolateStatus.loading:
-        // It is still loading we will resume in the stream listener.
-        break;
-      case M.IsolateStatus.paused:
-        // It is already paused we will resume here.
-        vm.isolates[0].resume();
-        break;
-      default:
-        expect(false, isTrue,
-            reason: "The first isolate should be loading or paused on start");
-    }
-    await completer.future;
-    // We wait 1 second to account for delays in the service protocol.
-    // A late message can still arrive.
-    await new Future.delayed(const Duration(seconds: 1));
-    // No fails, tear down the stream.
-    sub.cancel();
-  }
-];
-
-main(args) async => runVMTests(args, tests,
-    pause_on_start: true, pause_on_exit: true, testeeConcurrent: test);