JS: model process as an EventEmitter

Author: esbena

javascript/ql/src/semmle/javascript/frameworks/NodeJSLib.qll

@@ -935,6 +935,15 @@ module NodeJSLib {
     ImportedNodeJSEventEmitter() { this = getAnEventEmitterImport().getAnInstantiation() }
   }
 
+  /**
+   * The NodeJS `process` object as an EventEmitter subclass.
+   */
+  private class ProcessAsNodeJSEventEmitter extends NodeJSEventEmitter {
+    ProcessAsNodeJSEventEmitter() {
+      this = process()
+    }
+  }
+
   /**
    * A class that extends EventEmitter.
    */

javascript/ql/test/library-tests/frameworks/EventEmitter/test.expected

@@ -12,3 +12,5 @@
 | tst.js:28:17:28:22 | "blab" | tst.js:25:16:25:20 | event |
 | tst.js:34:18:34:22 | "BOH" | tst.js:33:17:33:17 | x |
 | tst.js:40:20:40:27 | "yabity" | tst.js:39:19:39:19 | x |
+| tst.js:46:28:46:38 | 'FirstData' | tst.js:43:45:43:49 | first |
+| tst.js:47:29:47:40 | 'SecondData' | tst.js:44:37:44:42 | second |