docs($controller): deprecate the use of $controllerProvider#allowGlobals

Closes #15230

src/ng/controller.js

@@ -59,6 +59,9 @@ function $ControllerProvider() {
    * @ngdoc method
    * @name $controllerProvider#allowGlobals
    * @description If called, allows `$controller` to find controller constructors on `window`
+   *
+   * @deprecated
+   * This method of finding controllers has been deprecated. This will be removed in 1.7.
    */
   this.allowGlobals = function() {
     globals = true;
@@ -79,7 +82,7 @@ function $ControllerProvider() {
      *    * check if a controller with given name is registered via `$controllerProvider`
      *    * check if evaluating the string on the current scope returns a constructor
      *    * if $controllerProvider#allowGlobals, check `window[constructor]` on the global
-     *      `window` object (not recommended)
+     *      `window` object (deprecated, not recommended)
      *
      *    The string can use the `controller as property` syntax, where the controller instance is published
      *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this

src/ng/directive/ngController.js

@@ -33,7 +33,7 @@
  *
  * If the current `$controllerProvider` is configured to use globals (via
  * {@link ng.$controllerProvider#allowGlobals `$controllerProvider.allowGlobals()` }), this may
- * also be the name of a globally accessible constructor function (not recommended).
+ * also be the name of a globally accessible constructor function (deprecated, not recommended).
  *
  * @example
  * Here is a simple form for editing user contact information. Adding, removing, clearing, and

src/ngMock/angular-mocks.js

@@ -2225,7 +2225,7 @@ angular.mock.$RootElementProvider = function() {
  *    * check if a controller with given name is registered via `$controllerProvider`
  *    * check if evaluating the string on the current scope returns a constructor
  *    * if $controllerProvider#allowGlobals, check `window[constructor]` on the global
- *      `window` object (not recommended)
+ *      `window` object (deprecated, not recommended)
  *
  *    The string can use the `controller as property` syntax, where the controller instance is published
  *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this