Updated the files.

my-app/node_modules/webpack/lib/dependencies/UnsupportedDependency.js

@@ -0,0 +1,82 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const makeSerializable = require("../util/makeSerializable");
+const NullDependency = require("./NullDependency");
+
+/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
+/** @typedef {import("../Dependency")} Dependency */
+/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
+/** @typedef {import("../javascript/JavascriptParser").Range} Range */
+/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
+/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
+
+class UnsupportedDependency extends NullDependency {
+	/**
+	 * @param {string} request the request string
+	 * @param {Range} range location in source code
+	 */
+	constructor(request, range) {
+		super();
+
+		this.request = request;
+		this.range = range;
+	}
+
+	/**
+	 * @param {ObjectSerializerContext} context context
+	 */
+	serialize(context) {
+		const { write } = context;
+
+		write(this.request);
+		write(this.range);
+
+		super.serialize(context);
+	}
+
+	/**
+	 * @param {ObjectDeserializerContext} context context
+	 */
+	deserialize(context) {
+		const { read } = context;
+
+		this.request = read();
+		this.range = read();
+
+		super.deserialize(context);
+	}
+}
+
+makeSerializable(
+	UnsupportedDependency,
+	"webpack/lib/dependencies/UnsupportedDependency"
+);
+
+UnsupportedDependency.Template = class UnsupportedDependencyTemplate extends (
+	NullDependency.Template
+) {
+	/**
+	 * @param {Dependency} dependency the dependency for which the template should be applied
+	 * @param {ReplaceSource} source the current replace source which can be modified
+	 * @param {DependencyTemplateContext} templateContext the context object
+	 * @returns {void}
+	 */
+	apply(dependency, source, { runtimeTemplate }) {
+		const dep = /** @type {UnsupportedDependency} */ (dependency);
+
+		source.replace(
+			dep.range[0],
+			dep.range[1],
+			runtimeTemplate.missingModule({
+				request: dep.request
+			})
+		);
+	}
+};
+
+module.exports = UnsupportedDependency;