Expose host + port in the parsed URL

It is used as connection identifier i routing table and connection pool.

Author: lutovich

src/v1/internal/url.js

@@ -40,6 +40,12 @@ class Url {
      */
     this.port = port;
 
+    /**
+     * Nonnull host name or IP address plus port, separated by ':'.
+     * @type {string}
+     */
+    this.hostAndPort = port ? `${host}:${port}` : host;
+
     /**
      * Nonnull object representing parsed query string key-value pairs. Duplicated keys not supported.
      * @type {object}

test/internal/url.test.js

@@ -622,8 +622,10 @@ fdescribe('url', () => {
 
     if (expectedUrl.port) {
       expect(url.port).toEqual(expectedUrl.port);
+      expect(url.hostAndPort).toEqual(`${expectedUrl.host}:${expectedUrl.port}`);
     } else {
       expect(url.port).toBeNull();
+      expect(url.hostAndPort).toEqual(expectedUrl.host);
     }
 
     if (expectedUrl.query) {