Add lib/goog.js to remove the implicit Closure Library goog.js dependency

PiperOrigin-RevId: 621928384

Author: Closure Team

lib/base.js

@@ -501,9 +501,8 @@ goog.getObjectByName_ = function(name, opt_obj) {
  * Note that all calls to goog.require will be stripped by the compiler.
  *
  * @see goog.provide
- * @param {string} namespace Namespace (as was given in goog.provide,
- *     goog.module, or goog.declareModuleId) in the form
- *     "goog.package.part".
+ * @param {string} namespace Namespace (as was given in goog.provide or
+ *     goog.module) in the form "goog.package.part".
  * @return {?} The associated namespace or module for use in goog.module or ES6
  *     module source files. NOT for use in goog.provide source files where using
  *     this returned value will result in undefined behavior when compiled.
@@ -531,9 +530,8 @@ goog.require = function(namespace) {
  *
  * Note that all calls to goog.requireType will be stripped by the compiler.
  *
- * @param {string} namespace Namespace (as was given in goog.provide,
- *     goog.module, or goog.declareModuleId) in the form
- *     "goog.package.part".
+ * @param {string} namespace Namespace (as was given in goog.provide or
+ *     goog.module in the form "goog.package.part".
  * @return {?}
  */
 goog.requireType = function(namespace) {

lib/goog.js

@@ -0,0 +1,35 @@
+/**
+ * @license
+ * Copyright The Closure Library Authors.
+ * Copyright The Closure Compiler Authors.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/**
+ * @fileoverview ES6 module exporting symbols from base.js. Provided here for
+ * legacy applications that need to move off of Closure Library and need to
+ * continue using ES6 modules. In general, `goog.module` files are recommended
+ * as they are better supported in the Closure Compiler.
+ *
+ * A special compiler pass enforces that you always import this file as
+ * `import * as goog`.
+ */
+
+export const require = goog.require;
+export const define = goog.define;
+export const DEBUG = goog.DEBUG;
+export const LOCALE = goog.LOCALE;
+export const getGoogModule = goog.module.get;
+export const forwardDeclare = goog.forwardDeclare;
+export const getCssName = goog.getCssName;
+export const setCssNameMapping = goog.setCssNameMapping;
+export const getMsg = goog.getMsg;
+export const getMsgWithFallback = goog.getMsgWithFallback;
+export const exportSymbol = goog.exportSymbol;
+export const exportProperty = goog.exportProperty;
+
+// Export select properties of module. Do not export the function itself or
+// goog.module.declareLegacyNamespace.
+export const module = {
+  get: goog.module.get,
+};