[inspector] Support multiple sessions per context group

test/inspector/sessions/runtime-console-api-called.js

+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+InspectorTest.log('Tests that all sessions get console api notifications.');
+
+function connect(contextGroup, num) {
+  var session = contextGroup.connect();
+  session.Protocol.Runtime.onConsoleAPICalled(message => {
+    InspectorTest.log('From session ' + num);
+    InspectorTest.logMessage(message);
+  });
+  return session;
+}
+
+(async function test() {
+  var contextGroup = new InspectorTest.ContextGroup();
+  var session1 = connect(contextGroup, 1);
+  var session2 = connect(contextGroup, 2);
+  await session1.Protocol.Runtime.enable();
+  await session2.Protocol.Runtime.enable();
+
+  InspectorTest.log('Error in 2');
+  await session2.Protocol.Runtime.evaluate({expression: 'console.error(1)'});
+
+  InspectorTest.log('Logging in 1');
+  await session1.Protocol.Runtime.evaluate({expression: 'console.log(2)'});
+
+  InspectorTest.log('Error in setTimeout 1');
+  await session1.Protocol.Runtime.evaluate({expression: 'setTimeout(() => console.error("a"), 0)'});
+  await InspectorTest.waitForPendingTasks();
+
+  InspectorTest.log('Logging in setTimeout 2');
+  await session2.Protocol.Runtime.evaluate({expression: 'setTimeout(() => console.log("b"), 0)'});
+  await InspectorTest.waitForPendingTasks();
+
+  InspectorTest.completeTest();
+})();