docs: add missing @ngModule tags (#25734)

PR Close #25734

packages/common/src/directives/ng_component_outlet.ts

@@ -66,6 +66,7 @@ import {ComponentFactoryResolver, ComponentRef, Directive, Injector, Input, NgMo
  * {@example common/ngComponentOutlet/ts/module.ts region='NgModuleFactoryExample'}
  *
  * @experimental
+ * @ngModule CommonModule
  */
 @Directive({selector: '[ngComponentOutlet]'})
 export class NgComponentOutlet implements OnChanges, OnDestroy {

packages/common/src/directives/ng_for_of.ts

@@ -92,7 +92,7 @@ export class NgForOfContext<T> {
  * See a [live demo](http://plnkr.co/edit/KVuXxDp0qinGDyo307QW?p=preview) for a more detailed
  * example.
  *
- *
+ * @ngModule CommonModule
  */
 @Directive({selector: '[ngFor][ngForOf]'})
 export class NgForOf<T> implements DoCheck {

packages/common/src/directives/ng_if.ts

@@ -99,7 +99,7 @@ import {Directive, EmbeddedViewRef, Input, TemplateRef, ViewContainerRef, ɵstri
  * <ng-template #elseBlock>...</ng-template>
  * ```
  *
- *
+ * @ngModule CommonModule
  */
 @Directive({selector: '[ngIf]'})
 export class NgIf {

packages/common/src/pipes/case_conversion_pipes.ts

@@ -21,7 +21,7 @@ import {invalidPipeArgumentError} from './invalid_pipe_argument_error';
  *
  * <code-example path="common/pipes/ts/lowerupper_pipe.ts" region='LowerUpperPipe'></code-example>
  *
- *
+ * @ngModule CommonModule
  */
 @Pipe({name: 'lowercase'})
 export class LowerCasePipe implements PipeTransform {
@@ -63,7 +63,7 @@ const unicodeWordMatch =
  *
  * <code-example path="common/pipes/ts/titlecase_pipe.ts" region='TitleCasePipe'></code-example>
  *
- *
+ * @ngModule CommonModule
  */
 @Pipe({name: 'titlecase'})
 export class TitleCasePipe implements PipeTransform {
@@ -85,6 +85,8 @@ export class TitleCasePipe implements PipeTransform {
  * Transforms text to all upper case.
  * @see `LowerCasePipe`
  * @see `TitleCasePipe`
+ *
+ * @ngModule CommonModule
  */
 @Pipe({name: 'uppercase'})
 export class UpperCasePipe implements PipeTransform {

packages/common/src/pipes/deprecated/number_pipe.ts

@@ -60,8 +60,6 @@ function formatNumber(
 }
 
 /**
- * @ngModule CommonModule
- *
  * Formats a number as text. Group sizing and separator and other locale-specific
  * configurations are based on the active locale.
  *
@@ -84,6 +82,7 @@ function formatNumber(
  *
  * {@example common/pipes/ts/number_pipe.ts region='DeprecatedNumberPipe'}
  *
+ * @ngModule CommonModule
  */
 @Pipe({name: 'number'})
 export class DeprecatedDecimalPipe implements PipeTransform {