Add test for Http2ServerRequest/Response object

Add test for Http2ServerRequest/Response object

Author: phouri

test/parallel/test-http2-request-response-proto.js

@@ -0,0 +1,19 @@
+// Flags: --expose-http2
+'use strict';
+
+const common = require('../common');
+if (!common.hasCrypto)
+  common.skip('missing crypto');
+const assert = require('assert');
+const http2 = require('http2');
+
+const {
+  Http2ServerRequest,
+  Http2ServerResponse,
+} = http2;
+
+const protoRequest = Object.create(Http2ServerRequest.prototype);
+const protoResponse = Object.create(Http2ServerResponse.prototype);
+
+assert.strictEqual(protoRequest instanceof Http2ServerRequest, true);
+assert.strictEqual(protoResponse instanceof Http2ServerResponse, true);