Updated the files.

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

@@ -0,0 +1,41 @@
+// \n = 10
+// ; = 59
+// { = 123
+// } = 125
+// <space> = 32
+// \r = 13
+// \t = 9
+
+const splitIntoPotentialTokens = str => {
+	const len = str.length;
+	if (len === 0) return null;
+	const results = [];
+	let i = 0;
+	for (; i < len; ) {
+		const s = i;
+		block: {
+			let cc = str.charCodeAt(i);
+			while (cc !== 10 && cc !== 59 && cc !== 123 && cc !== 125) {
+				if (++i >= len) break block;
+				cc = str.charCodeAt(i);
+			}
+			while (
+				cc === 59 ||
+				cc === 32 ||
+				cc === 123 ||
+				cc === 125 ||
+				cc === 13 ||
+				cc === 9
+			) {
+				if (++i >= len) break block;
+				cc = str.charCodeAt(i);
+			}
+			if (cc === 10) {
+				i++;
+			}
+		}
+		results.push(str.slice(s, i));
+	}
+	return results;
+};
+module.exports = splitIntoPotentialTokens;