Merge pull request github#8808 from vovikhangcdv/doublevkay/fixing-PrototypePollutngAssignment-examples

Javascript: Fix PrototypePollutingAssignment example which is incorrect use of express leads to no result when scanning.

Author: asgerf

javascript/ql/src/Security/CWE-915/examples/PrototypePollutingAssignment.js

@@ -1,6 +1,7 @@
 let express = require('express');
+let app = express()
 
-express.put('/todos/:id', (req, res) => {
+app.put('/todos/:id', (req, res) => {
     let id = req.params.id;
     let items = req.session.todos[id];
     if (!items) {

javascript/ql/src/Security/CWE-915/examples/PrototypePollutingAssignmentFixed.js

@@ -1,6 +1,7 @@
 let express = require('express');
+let app = express()
 
-express.put('/todos/:id', (req, res) => {
+app.put('/todos/:id', (req, res) => {
     let id = req.params.id;
     let items = req.session.todos.get(id);
     if (!items) {