Annotate some overrides

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=140383298

lib/src/common/directives/ng_class.dart

@@ -81,6 +81,7 @@ class NgClass implements DoCheck, OnDestroy {
     }
   }
 
+  @override
   void ngDoCheck() {
     if (_iterableDiffer != null) {
       var changes = _iterableDiffer.diff(_rawClass);
@@ -96,6 +97,7 @@ class NgClass implements DoCheck, OnDestroy {
     }
   }
 
+  @override
   void ngOnDestroy() {
     _cleanupClasses(_rawClass);
   }

lib/src/common/directives/ng_for.dart

@@ -121,6 +121,7 @@ class NgFor implements DoCheck {
     this._ngForTrackBy = value;
   }
 
+  @override
   void ngDoCheck() {
     if (_differ != null) {
       var changes = this._differ.diff(this._ngForOf);

lib/src/common/directives/ng_plural.dart

@@ -98,6 +98,7 @@ class NgPlural implements AfterContentInit {
     this._updateView();
   }
 
+  @override
   void ngAfterContentInit() {
     this.cases.forEach(/* void */ (NgPluralCase pluralCase) {
       this._caseViews[this._formatValue(pluralCase)] = pluralCase._view;

lib/src/common/directives/ng_style.dart

@@ -56,6 +56,7 @@ class NgStyle implements DoCheck {
     }
   }
 
+  @override
   void ngDoCheck() {
     if (_differ == null) return;
     var changes = _differ.diff(_rawStyle);

lib/src/common/directives/observable_list_diff.dart

@@ -13,6 +13,7 @@ class ObservableListDiff extends DefaultIterableDiffer {
   ObservableList _collection;
   StreamSubscription _subscription;
 
+  @override
   void onDestroy() {
     if (this._subscription != null) {
       this._subscription.cancel();
@@ -21,6 +22,7 @@ class ObservableListDiff extends DefaultIterableDiffer {
     }
   }
 
+  @override
   DefaultIterableDiffer diff(Iterable iterable) {
     assert(iterable is ObservableList);
     ObservableList collection = iterable;
@@ -56,7 +58,9 @@ class ObservableListDiff extends DefaultIterableDiffer {
 @Deprecated('No longer part of Angular. Copy into your project if needed')
 class ObservableListDiffFactory implements IterableDifferFactory {
   const ObservableListDiffFactory();
+  @override
   bool supports(obj) => obj is ObservableList;
+  @override
   IterableDiffer create(ChangeDetectorRef cdRef, [Function trackByFn]) {
     return new ObservableListDiff(cdRef);
   }

lib/src/common/forms/directives/checkbox_value_accessor.dart

@@ -27,15 +27,18 @@ class CheckboxControlValueAccessor implements ControlValueAccessor {
   var onChange = (dynamic _) {};
   var onTouched = () {};
   CheckboxControlValueAccessor(this._elementRef);
+  @override
   void writeValue(dynamic value) {
     InputElement elm = this._elementRef.nativeElement;
     elm.checked = value;
   }
 
+  @override
   void registerOnChange(dynamic fn) {
     this.onChange = fn;
   }
 
+  @override
   void registerOnTouched(dynamic fn) {
     this.onTouched = fn;
   }

lib/src/common/forms/directives/default_value_accessor.dart

@@ -27,15 +27,18 @@ class DefaultValueAccessor implements ControlValueAccessor {
   var onChange = (dynamic _) {};
   var onTouched = () {};
   DefaultValueAccessor(this._elementRef);
+  @override
   void writeValue(dynamic value) {
     var normalizedValue = value ?? '';
     DOM.setProperty(_elementRef.nativeElement, 'value', normalizedValue);
   }
 
+  @override
   void registerOnChange(void fn(dynamic _)) {
     this.onChange = fn;
   }
 
+  @override
   void registerOnTouched(void fn()) {
     this.onTouched = fn;
   }

lib/src/common/forms/directives/ng_control_group.dart

@@ -78,25 +78,30 @@ class NgControlGroup extends ControlContainer implements OnInit, OnDestroy {
       @Optional() @Self() @Inject(NG_VALIDATORS) this._validators,
       @Optional() @Self() @Inject(NG_ASYNC_VALIDATORS) this._asyncValidators);
 
+  @override
   void ngOnInit() {
     this.formDirective.addControlGroup(this);
   }
 
+  @override
   void ngOnDestroy() {
     this.formDirective.removeControlGroup(this);
   }
 
   /// Get the [ControlGroup] backing this binding.
+  @override
   ControlGroup get control {
     return this.formDirective.getControlGroup(this);
   }
 
   /// Get the path to this control group.
+  @override
   List<String> get path {
     return controlPath(this.name, this._parent);
   }
 
   /// Get the [Form] to which this group belongs.
+  @override
   Form get formDirective {
     return this._parent.formDirective;
   }

lib/src/common/forms/directives/ng_control_name.dart

@@ -113,6 +113,7 @@ class NgControlName extends NgControl implements OnChanges, OnDestroy {
           List<ControlValueAccessor> valueAccessors) {
     this.valueAccessor = selectValueAccessor(this, valueAccessors);
   }
+  @override
   ngOnChanges(Map<String, SimpleChange> changes) {
     if (!this._added) {
       this.formDirective.addControl(this);
@@ -124,15 +125,18 @@ class NgControlName extends NgControl implements OnChanges, OnDestroy {
     }
   }
 
+  @override
   void ngOnDestroy() {
     this.formDirective.removeControl(this);
   }
 
+  @override
   void viewToModelUpdate(dynamic newValue) {
     this.viewModel = newValue;
     this.update.add(newValue);
   }
 
+  @override
   List<String> get path {
     return controlPath(this.name, this._parent);
   }
@@ -141,14 +145,17 @@ class NgControlName extends NgControl implements OnChanges, OnDestroy {
     return this._parent.formDirective;
   }
 
+  @override
   ValidatorFn get validator {
     return composeValidators(this._validators);
   }
 
+  @override
   AsyncValidatorFn get asyncValidator {
     return composeAsyncValidators(this._asyncValidators);
   }
 
+  @override
   Control get control {
     return this.formDirective.getControl(this);
   }

lib/src/common/forms/directives/ng_form.dart

@@ -97,14 +97,17 @@ class NgForm extends ControlContainer implements Form {
     this.form = new ControlGroup({}, null, composeValidators(validators),
         composeAsyncValidators(asyncValidators));
   }
+  @override
   Form get formDirective {
     return this;
   }
 
+  @override
   ControlGroup get control {
     return this.form;
   }
 
+  @override
   List<String> get path {
     return [];
   }
@@ -113,6 +116,7 @@ class NgForm extends ControlContainer implements Form {
     return this.form.controls;
   }
 
+  @override
   void addControl(NgControl dir) {
     var container = _findContainer(dir.path);
     var ctrl = new Control();
@@ -123,10 +127,12 @@ class NgForm extends ControlContainer implements Form {
     });
   }
 
+  @override
   Control getControl(NgControl dir) {
     return (this.form.find(dir.path) as Control);
   }
 
+  @override
   void removeControl(NgControl dir) {
     scheduleMicrotask(() {
       var container = this._findContainer(dir.path);
@@ -137,6 +143,7 @@ class NgForm extends ControlContainer implements Form {
     });
   }
 
+  @override
   void addControlGroup(NgControlGroup dir) {
     var container = _findContainer(dir.path);
     var group = new ControlGroup({});
@@ -147,6 +154,7 @@ class NgForm extends ControlContainer implements Form {
     });
   }
 
+  @override
   void removeControlGroup(NgControlGroup dir) {
     scheduleMicrotask(() {
       var container = this._findContainer(dir.path);
@@ -157,10 +165,12 @@ class NgForm extends ControlContainer implements Form {
     });
   }
 
+  @override
   ControlGroup getControlGroup(NgControlGroup dir) {
     return (this.form.find(dir.path) as ControlGroup);
   }
 
+  @override
   void updateModel(NgControl dir, dynamic value) {
     scheduleMicrotask(() {
       var ctrl = (this.form.find(dir.path) as Control);

lib/src/common/forms/directives/ng_form_control.dart

@@ -93,6 +93,7 @@ class NgFormControl extends NgControl implements OnChanges {
           List<ControlValueAccessor> valueAccessors) {
     this.valueAccessor = selectValueAccessor(this, valueAccessors);
   }
+  @override
   void ngOnChanges(Map<String, SimpleChange> changes) {
     if (this._isControlChanged(changes)) {
       setUpControl(this.form, this);
@@ -104,22 +105,27 @@ class NgFormControl extends NgControl implements OnChanges {
     }
   }
 
+  @override
   List<String> get path {
     return [];
   }
 
+  @override
   ValidatorFn get validator {
     return composeValidators(this._validators);
   }
 
+  @override
   AsyncValidatorFn get asyncValidator {
     return composeAsyncValidators(this._asyncValidators);
   }
 
+  @override
   Control get control {
     return this.form;
   }
 
+  @override
   void viewToModelUpdate(dynamic newValue) {
     this.viewModel = newValue;
     this.update.add(newValue);

lib/src/common/forms/directives/ng_form_model.dart

@@ -107,6 +107,7 @@ class NgFormModel extends ControlContainer implements Form, OnChanges {
   NgFormModel(@Optional() @Self() @Inject(NG_VALIDATORS) this._validators,
       @Optional() @Self() @Inject(NG_ASYNC_VALIDATORS) this._asyncValidators);
 
+  @override
   void ngOnChanges(Map<String, SimpleChange> changes) {
     _checkFormPresent();
     if (changes.containsKey('form')) {
@@ -120,38 +121,49 @@ class NgFormModel extends ControlContainer implements Form, OnChanges {
     _updateDomValue();
   }
 
+  @override
   Form get formDirective => this;
 
+  @override
   ControlGroup get control => form;
 
+  @override
   List<String> get path => [];
 
+  @override
   void addControl(NgControl dir) {
     dynamic ctrl = form.find(dir.path);
     setUpControl(ctrl, dir);
     ctrl.updateValueAndValidity(emitEvent: false);
     directives.add(dir);
   }
 
+  @override
   Control getControl(NgControl dir) {
     return (form.find(dir.path) as Control);
   }
 
+  @override
   void removeControl(NgControl dir) {
     directives.remove(dir);
   }
 
+  @override
   void addControlGroup(NgControlGroup dir) {
     dynamic ctrl = form.find(dir.path);
     setUpControlGroup(ctrl, dir);
     ctrl.updateValueAndValidity(emitEvent: false);
   }
 
+  @override
   void removeControlGroup(NgControlGroup dir) {}
+
+  @override
   ControlGroup getControlGroup(NgControlGroup dir) {
     return (form.find(dir.path) as ControlGroup);
   }
 
+  @override
   void updateModel(NgControl dir, dynamic value) {
     var ctrl = (form.find(dir.path) as Control);
     ctrl.updateValue(value);

lib/src/common/forms/directives/ng_model.dart

@@ -71,6 +71,7 @@ class NgModel extends NgControl implements OnChanges {
       : super() {
     this.valueAccessor = selectValueAccessor(this, valueAccessors);
   }
+  @override
   void ngOnChanges(Map<String, SimpleChange> changes) {
     if (!this._added) {
       setUpControl(this._control, this);
@@ -83,22 +84,27 @@ class NgModel extends NgControl implements OnChanges {
     }
   }
 
+  @override
   Control get control {
     return this._control;
   }
 
+  @override
   List<String> get path {
     return [];
   }
 
+  @override
   ValidatorFn get validator {
     return composeValidators(this._validators);
   }
 
+  @override
   AsyncValidatorFn get asyncValidator {
     return composeAsyncValidators(this._asyncValidators);
   }
 
+  @override
   void viewToModelUpdate(dynamic newValue) {
     this.viewModel = newValue;
     this.update.add(newValue);

lib/src/common/forms/directives/number_value_accessor.dart

@@ -29,17 +29,20 @@ class NumberValueAccessor implements ControlValueAccessor {
   var onChange = (_) {};
   var onTouched = () {};
   NumberValueAccessor(this._elementRef);
+  @override
   void writeValue(value) {
     InputElement elm = _elementRef.nativeElement;
     elm.value = '$value';
   }
 
+  @override
   void registerOnChange(dynamic fn) {
     this.onChange = (value) {
       fn(value == "" ? null : double.parse(value));
     };
   }
 
+  @override
   void registerOnTouched(dynamic fn) {
     this.onTouched = fn;
   }