feat($compile): add custom annotations to the controller

This means that we can access these annotations, such as
`$routeConfig` and `$routerCanActivate` without highjacking
the `ng` module.

Closes #14114

Author: petebacondarwin

src/ng/compile.js

@@ -1030,7 +1030,8 @@ function $CompileProvider($provide, $$sanitizeUriProvider) {
    *      See {@link ng.$compile#-bindtocontroller- `bindToController`}.
    *    - `transclude` – `{boolean=}` – whether {@link $compile#transclusion content transclusion} is enabled.
    *      Disabled by default.
-   *    - `$...` – `{function()=}` – additional annotations to provide to the directive factory function.
+   *    - `$...` – additional properties to attach to the directive factory function and the controller
+   *      constructor function. (This is used by the component router to annotate)
    *
    * @returns {ng.$compileProvider} the compile provider itself, for chaining of function calls.
    * @description
@@ -1106,6 +1107,7 @@ function $CompileProvider($provide, $$sanitizeUriProvider) {
     forEach(options, function(val, key) {
       if (key.charAt(0) === '$') {
         factory[key] = val;
+        controller[key] = val;
       }
     });
 

test/ng/compileSpec.js

@@ -10044,6 +10044,22 @@ describe('$compile', function() {
       }));
     });
 
+    it('should add additional annotations to the controller constructor', function() {
+      var myModule = angular.module('my', []).component('myComponent', {
+        $canActivate: 'canActivate',
+        $routeConfig: 'routeConfig',
+        $customAnnotation: 'XXX'
+      });
+      module('my');
+      inject(function(myComponentDirective) {
+        expect(myComponentDirective[0].controller).toEqual(jasmine.objectContaining({
+          $canActivate: 'canActivate',
+          $routeConfig: 'routeConfig',
+          $customAnnotation: 'XXX'
+        }));
+      });
+    });
+
     it('should return ddo with reasonable defaults', function() {
       angular.module('my', []).component('myComponent', {});
       module('my');