Updated the files.

my-app/node_modules/webpack-sources/lib/helpers/streamChunksOfRawSource.js

@@ -0,0 +1,34 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const getGeneratedSourceInfo = require("./getGeneratedSourceInfo");
+const splitIntoLines = require("./splitIntoLines");
+
+const streamChunksOfRawSource = (source, onChunk, onSource, onName) => {
+	let line = 1;
+	const matches = splitIntoLines(source);
+	let match;
+	for (match of matches) {
+		onChunk(match, line, 0, -1, -1, -1, -1);
+		line++;
+	}
+	return matches.length === 0 || match.endsWith("\n")
+		? {
+				generatedLine: matches.length + 1,
+				generatedColumn: 0
+		  }
+		: {
+				generatedLine: matches.length,
+				generatedColumn: match.length
+		  };
+};
+
+module.exports = (source, onChunk, onSource, onName, finalSource) => {
+	return finalSource
+		? getGeneratedSourceInfo(source)
+		: streamChunksOfRawSource(source, onChunk, onSource, onName);
+};