fix(multiple): make more public APIs readonly

Marks some more public APIs in `aria` as readonly.

Author: crisbeto

goldens/aria/combobox/index.api.md

@@ -16,14 +16,14 @@ export class Combobox<V> {
     readonly disabled: _angular_core.InputSignalWithTransform<boolean, unknown>;
     readonly element: HTMLElement;
     readonly expanded: _angular_core.Signal<boolean>;
-    filterMode: _angular_core.InputSignal<"manual" | "auto-select" | "highlight">;
+    readonly filterMode: _angular_core.InputSignal<"manual" | "auto-select" | "highlight">;
     readonly firstMatch: _angular_core.InputSignal<V | undefined>;
     readonly inputElement: _angular_core.Signal<HTMLInputElement | undefined>;
     open(): void;
     readonly _pattern: ComboboxPattern<any, V>;
     readonly popup: _angular_core.Signal<ComboboxPopup<V> | undefined>;
     readonly readonly: _angular_core.InputSignalWithTransform<boolean, unknown>;
-    protected textDirection: _angular_core.Signal<_angular_cdk_bidi.Direction>;
+    protected readonly textDirection: _angular_core.Signal<_angular_cdk_bidi.Direction>;
     // (undocumented)
     static ɵdir: _angular_core.ɵɵDirectiveDeclaration<Combobox<any>, "[ngCombobox]", ["ngCombobox"], { "filterMode": { "alias": "filterMode"; "required": false; "isSignal": true; }; "disabled": { "alias": "disabled"; "required": false; "isSignal": true; }; "readonly": { "alias": "readonly"; "required": false; "isSignal": true; }; "firstMatch": { "alias": "firstMatch"; "required": false; "isSignal": true; }; "alwaysExpanded": { "alias": "alwaysExpanded"; "required": false; "isSignal": true; }; }, {}, ["popup"], never, true, [{ directive: typeof DeferredContentAware; inputs: { "preserveContent": "preserveContent"; }; outputs: {}; }]>;
     // (undocumented)
@@ -38,7 +38,7 @@ export class ComboboxDialog {
     readonly combobox: Combobox<any>;
     readonly element: HTMLElement;
     // (undocumented)
-    _pattern: ComboboxDialogPattern;
+    readonly _pattern: ComboboxDialogPattern;
     // (undocumented)
     static ɵdir: _angular_core.ɵɵDirectiveDeclaration<ComboboxDialog, "dialog[ngComboboxDialog]", ["ngComboboxDialog"], {}, {}, never, never, true, [{ directive: typeof ComboboxPopup; inputs: {}; outputs: {}; }]>;
     // (undocumented)
@@ -50,7 +50,7 @@ export class ComboboxInput {
     constructor();
     readonly combobox: Combobox<any>;
     readonly element: HTMLElement;
-    value: _angular_core.ModelSignal<string>;
+    readonly value: _angular_core.ModelSignal<string>;
     // (undocumented)
     static ɵdir: _angular_core.ɵɵDirectiveDeclaration<ComboboxInput, "input[ngComboboxInput]", ["ngComboboxInput"], { "value": { "alias": "value"; "required": false; "isSignal": true; }; }, { "value": "valueChange"; }, never, never, true, never>;
     // (undocumented)

goldens/aria/listbox/index.api.md

@@ -10,24 +10,24 @@ import * as _angular_core from '@angular/core';
 // @public
 export class Listbox<V> {
     constructor();
-    disabled: _angular_core.InputSignalWithTransform<boolean, unknown>;
+    readonly disabled: _angular_core.InputSignalWithTransform<boolean, unknown>;
     readonly element: HTMLElement;
-    focusMode: _angular_core.InputSignal<"roving" | "activedescendant">;
+    readonly focusMode: _angular_core.InputSignal<"roving" | "activedescendant">;
     gotoFirst(): void;
     readonly id: _angular_core.InputSignal<string>;
-    protected items: _angular_core.Signal<OptionPattern<V>[]>;
-    multi: _angular_core.InputSignalWithTransform<boolean, unknown>;
-    orientation: _angular_core.InputSignal<"vertical" | "horizontal">;
+    protected readonly items: _angular_core.Signal<OptionPattern<V>[]>;
+    readonly multi: _angular_core.InputSignalWithTransform<boolean, unknown>;
+    readonly orientation: _angular_core.InputSignal<"vertical" | "horizontal">;
     readonly _pattern: ListboxPattern<V>;
-    readonly: _angular_core.InputSignalWithTransform<boolean, unknown>;
+    readonly readonly: _angular_core.InputSignalWithTransform<boolean, unknown>;
     // (undocumented)
     scrollActiveItemIntoView(options?: ScrollIntoViewOptions): void;
-    selectionMode: _angular_core.InputSignal<"follow" | "explicit">;
-    softDisabled: _angular_core.InputSignalWithTransform<boolean, unknown>;
-    protected textDirection: _angular_core.Signal<_angular_cdk_bidi.Direction>;
-    typeaheadDelay: _angular_core.InputSignal<number>;
-    value: _angular_core.ModelSignal<V[]>;
-    wrap: _angular_core.InputSignalWithTransform<boolean, unknown>;
+    readonly selectionMode: _angular_core.InputSignal<"follow" | "explicit">;
+    readonly softDisabled: _angular_core.InputSignalWithTransform<boolean, unknown>;
+    protected readonly textDirection: _angular_core.Signal<_angular_cdk_bidi.Direction>;
+    readonly typeaheadDelay: _angular_core.InputSignal<number>;
+    readonly value: _angular_core.ModelSignal<V[]>;
+    readonly wrap: _angular_core.InputSignalWithTransform<boolean, unknown>;
     // (undocumented)
     static ɵdir: _angular_core.ɵɵDirectiveDeclaration<Listbox<any>, "[ngListbox]", ["ngListbox"], { "id": { "alias": "id"; "required": false; "isSignal": true; }; "orientation": { "alias": "orientation"; "required": false; "isSignal": true; }; "multi": { "alias": "multi"; "required": false; "isSignal": true; }; "wrap": { "alias": "wrap"; "required": false; "isSignal": true; }; "softDisabled": { "alias": "softDisabled"; "required": false; "isSignal": true; }; "focusMode": { "alias": "focusMode"; "required": false; "isSignal": true; }; "selectionMode": { "alias": "selectionMode"; "required": false; "isSignal": true; }; "typeaheadDelay": { "alias": "typeaheadDelay"; "required": false; "isSignal": true; }; "disabled": { "alias": "disabled"; "required": false; "isSignal": true; }; "readonly": { "alias": "readonly"; "required": false; "isSignal": true; }; "value": { "alias": "value"; "required": false; "isSignal": true; }; }, { "value": "valueChange"; }, ["_options"], never, true, [{ directive: typeof ComboboxPopup; inputs: {}; outputs: {}; }]>;
     // (undocumented)
@@ -36,15 +36,15 @@ export class Listbox<V> {
 
 // @public
 class Option_2<V> {
-    active: _angular_core.Signal<boolean>;
-    disabled: _angular_core.InputSignalWithTransform<boolean, unknown>;
+    readonly active: _angular_core.Signal<boolean>;
+    readonly disabled: _angular_core.InputSignalWithTransform<boolean, unknown>;
     readonly element: HTMLElement;
     readonly id: _angular_core.InputSignal<string>;
-    label: _angular_core.InputSignal<string | undefined>;
+    readonly label: _angular_core.InputSignal<string | undefined>;
     readonly _pattern: OptionPattern<V>;
-    protected searchTerm: _angular_core.Signal<string>;
+    protected readonly searchTerm: _angular_core.Signal<string>;
     readonly selected: _angular_core.Signal<boolean | undefined>;
-    value: _angular_core.InputSignal<V>;
+    readonly value: _angular_core.InputSignal<V>;
     // (undocumented)
     static ɵdir: _angular_core.ɵɵDirectiveDeclaration<Option_2<any>, "[ngOption]", ["ngOption"], { "id": { "alias": "id"; "required": false; "isSignal": true; }; "value": { "alias": "value"; "required": true; "isSignal": true; }; "disabled": { "alias": "disabled"; "required": false; "isSignal": true; }; "label": { "alias": "label"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
     // (undocumented)

goldens/aria/menu/index.api.md

@@ -93,9 +93,9 @@ export class MenuTrigger<V> {
     readonly element: HTMLElement;
     readonly expanded: _angular_core.Signal<boolean>;
     readonly hasPopup: _angular_core.Signal<boolean>;
-    menu: _angular_core.InputSignal<Menu<V> | undefined>;
+    readonly menu: _angular_core.InputSignal<Menu<V> | undefined>;
     open(): void;
-    _pattern: MenuTriggerPattern<V>;
+    readonly _pattern: MenuTriggerPattern<V>;
     readonly softDisabled: _angular_core.InputSignalWithTransform<boolean, unknown>;
     readonly textDirection: _angular_core.WritableSignal<_angular_cdk_bidi.Direction>;
     // (undocumented)