Add debug_accountRangeAt/debug_storageRangeAt methods (#1799)

* Add debug_accountRangeAt method

* Add debug_storageRangeAt method

lib/web3.js

@@ -39,6 +39,7 @@ var Shh = require('./web3/methods/shh');
 var Net = require('./web3/methods/net');
 var Personal = require('./web3/methods/personal');
 var Swarm = require('./web3/methods/swarm');
+var Debug = require('./web3/methods/debug');
 var Settings = require('./web3/settings');
 var version = require('./version.json');
 var utils = require('./utils/utils');
@@ -60,6 +61,7 @@ function Web3 (provider) {
     this.shh = new Shh(this);
     this.net = new Net(this);
     this.personal = new Personal(this);
+    this.debug = new Debug(this);
     this.bzz = new Swarm(this);
     this.settings = new Settings();
     this.version = {
@@ -155,4 +157,3 @@ Web3.prototype.createBatch = function () {
 };
 
 module.exports = Web3;
-

lib/web3/methods/debug.js

@@ -0,0 +1,58 @@
+/*
+    This file is part of web3.js.
+
+    web3.js is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    web3.js is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with web3.js.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * @file debug.js
+ * @author ewasm team
+ * @date 2018
+ */
+
+"use strict";
+
+var Method = require('../method');
+
+function Debug(web3) {
+    this._requestManager = web3._requestManager;
+
+    var self = this;
+
+    methods().forEach(function(method) {
+        method.attachToObject(self);
+        method.setRequestManager(self._requestManager);
+    });
+}
+
+var methods = function () {
+
+    var accountRangeAt = new Method({
+        name: 'accountRangeAt',
+        call: 'debug_accountRangeAt',
+        params: 4
+    });
+
+    var storageRangeAt = new Method({
+        name: 'storageRangeAt',
+        call: 'debug_storageRangeAt',
+        params: 5
+    });
+
+    return [
+        accountRangeAt,
+        storageRangeAt
+    ];
+};
+
+module.exports = Debug;