[inspector] added flag for injected-script-source debugging

test/inspector/debugger/stepping-ignores-injected-script.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.
+

[Yang, 2017/03/22 11:00:01]

Can we also have a test that uses the flag by adding a line to the test "Flags:
--compile_inspector_scripts_as_user"?

[kozy, 2017/03/22 17:08:49]

Done.

+Protocol.Debugger.onPaused(message => {
+  InspectorTest.logSourceLocation(message.params.callFrames[0].location);
+  Protocol.Debugger.stepInto();
+});
+
+InspectorTest.setupScriptMap();
+Protocol.Debugger.enable();
+Protocol.Debugger.pause();
+Protocol.Runtime.evaluate({expression: 'console.log(42)'})
+  .then(InspectorTest.completeTest);