Noissue - Enable source map for the tests

test_runner.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2017 eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 48 matching lines @@
 
 function webpackInMemory(bundleFilename, options)
 {
   return new Promise((resolve, reject) =>
   {
     // Based on this example
     // https://webpack.js.org/api/node/#custom-file-systems
     let memoryFS = new MemoryFS();
 
     options.output = {filename: bundleFilename, path: "/"};
+    options.devtool = "cheap-eval-source-map";
     let webpackCompiler = webpack(options);
     webpackCompiler.outputFileSystem = memoryFS;
 
     webpackCompiler.run((err, stats) =>
     {
       // Error handling is based on this example
       // https://webpack.js.org/api/node/#error-handling
       if (err)
       {
         let reason = err.stack || err;
@@ skipping 65 matching lines @@
 
 Promise.resolve(runBrowserTests()).catch(error =>
 {
   console.error("Failed running browser tests");
   console.error(error);
 }).then(() =>
 {
   if (unitFiles.length)
     nodeunit.reporters.default.run(unitFiles);
 });