Update ChunkModuleIdRangePlugin to webpack 4 API

lib/optimize/ChunkModuleIdRangePlugin.js

@@ -3,10 +3,20 @@
 	Author Tobias Koppers @sokra
 */
 "use strict";
+
+const sortByIndex = (a, b) => {
+	return a.index - b.index;
+};
+
+const sortByIndex2 = (a, b) => {
+	return a.index2 - b.index2;
+};
+
 class ChunkModuleIdRangePlugin {
 	constructor(options) {
 		this.options = options;
 	}
+
 	apply(compiler) {
 		const options = this.options;
 		compiler.hooks.compilation.tap("ChunkModuleIdRangePlugin", compilation => {
@@ -14,26 +24,23 @@ class ChunkModuleIdRangePlugin {
 				const chunk = compilation.chunks.find(
 					chunk => chunk.name === options.name
 				);
-				if (!chunk)
+				if (!chunk) {
 					throw new Error(
-						"ChunkModuleIdRangePlugin: Chunk with name '" +
-							options.name +
-							"' was not found"
+						`ChunkModuleIdRangePlugin: Chunk with name '${
+							options.name
+						}"' was not found`
 					);
-				let currentId = options.start;
+				}
+
 				let chunkModules;
 				if (options.order) {
-					chunkModules = chunk.modules.slice();
+					chunkModules = Array.from(chunk.modulesIterable);
 					switch (options.order) {
 						case "index":
-							chunkModules.sort((a, b) => {
-								return a.index - b.index;
-							});
+							chunkModules.sort(sortByIndex);
 							break;
 						case "index2":
-							chunkModules.sort((a, b) => {
-								return a.index2 - b.index2;
-							});
+							chunkModules.sort(sortByIndex2);
 							break;
 						default:
 							throw new Error(
@@ -42,10 +49,11 @@ class ChunkModuleIdRangePlugin {
 					}
 				} else {
 					chunkModules = modules.filter(m => {
-						return m.chunks.includes(chunk);
+						return m.chunksIterable.has(chunk);
 					});
 				}
 
+				let currentId = options.start || 0;
 				for (let i = 0; i < chunkModules.length; i++) {
 					const m = chunkModules[i];
 					if (m.id === null) {