add test for the serverless express API

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

@@ -3,3 +3,4 @@
 | tst3/function/index.js:1:36:1:40 | event |
 | tst4/app.js:1:36:1:40 | event |
 | tst5/app.js:1:36:1:40 | event |
+| tst6/handler.js:6:23:6:36 | req.query.name |

javascript/ql/test/library-tests/frameworks/ServerLess/tst6/handler.js

@@ -0,0 +1,9 @@
+const serverless = require("serverless-http");
+const express = require("express");
+const app = express();
+
+app.get("/", (req, res, next) => {
+  res.send("Hello " + req.query.name);
+});
+
+module.exports.handler = serverless(app);

javascript/ql/test/library-tests/frameworks/ServerLess/tst6/serverless.yml

@@ -0,0 +1,16 @@
+service: aws-node-express-api
+
+frameworkVersion: '2'
+
+provider:
+  name: aws
+  runtime: nodejs12.x
+  lambdaHashingVersion: '20201221'
+
+functions:
+  api:
+    handler: handler.handler
+    events:
+      - http:
+          path: /
+          method: ANY