Mark inputs as readonly arrays

The input arrays should never be mutated

src/vs/platform/contextkey/common/contextkey.ts

@@ -534,7 +534,7 @@ export class ContextKeyNotRegexExpr implements ContextKeyExpr {
 
 export class ContextKeyAndExpr implements ContextKeyExpr {
 
-	public static create(_expr: Array<ContextKeyExpr | null | undefined>): ContextKeyExpr | undefined {
+	public static create(_expr: ReadonlyArray<ContextKeyExpr | null | undefined>): ContextKeyExpr | undefined {
 		const expr = ContextKeyAndExpr._normalizeArr(_expr);
 		if (expr.length === 0) {
 			return undefined;
@@ -594,7 +594,7 @@ export class ContextKeyAndExpr implements ContextKeyExpr {
 		return true;
 	}
 
-	private static _normalizeArr(arr: Array<ContextKeyExpr | null | undefined>): ContextKeyExpr[] {
+	private static _normalizeArr(arr: ReadonlyArray<ContextKeyExpr | null | undefined>): ContextKeyExpr[] {
 		const expr: ContextKeyExpr[] = [];
 
 		for (const e of arr) {
@@ -647,7 +647,7 @@ export class ContextKeyAndExpr implements ContextKeyExpr {
 
 export class ContextKeyOrExpr implements ContextKeyExpr {
 
-	public static create(_expr: Array<ContextKeyExpr | null | undefined>): ContextKeyExpr | undefined {
+	public static create(_expr: ReadonlyArray<ContextKeyExpr | null | undefined>): ContextKeyExpr | undefined {
 		const expr = ContextKeyOrExpr._normalizeArr(_expr);
 		if (expr.length === 0) {
 			return undefined;
@@ -691,7 +691,7 @@ export class ContextKeyOrExpr implements ContextKeyExpr {
 		return false;
 	}
 
-	private static _normalizeArr(arr: Array<ContextKeyExpr | null | undefined>): ContextKeyExpr[] {
+	private static _normalizeArr(arr: ReadonlyArray<ContextKeyExpr | null | undefined>): ContextKeyExpr[] {
 		let expr: ContextKeyExpr[] = [];
 
 		if (arr) {