commit node_modules and generated files

node_modules/memory-fs/lib/MemoryFileSystemError.js

@@ -0,0 +1,31 @@
+
+"use strict";
+
+class MemoryFileSystemError extends Error {
+	constructor(err, path, operation) {
+		super(err, path);
+
+		// Set `name` and `message` before call `Error.captureStackTrace` \
+		// so that we will obtain the correct 1st line of stack, like:
+		// [Error]: [Message]
+		this.name = this.constructor.name;
+		var message = [`${err.code}:`, `${err.description},`];
+		// Add operation name and path into message, similar to node `fs` style.
+		if(operation) {
+			message.push(operation);
+		}
+		message.push(`\'${path}\'`);
+		this.message = message.join(' ');
+
+		this.code = err.code;
+		this.errno = err.errno;
+		this.path = path;
+		this.operation = operation;
+
+		if(Error.captureStackTrace) {
+			Error.captureStackTrace(this, this.constructor);
+		}
+	}
+}
+
+module.exports = MemoryFileSystemError;