test: add test case for util.inspect

PR-URL: #55778
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>

Author: ljharb

test/parallel/test-util-inspect.js

@@ -3258,6 +3258,13 @@ assert.strictEqual(
 util.inspect({['__proto__']: {a: 1}}),
 "{ ['__proto__']: { a: 1 } }"
 );
+
+consto={['__proto__']: {a: 1}};
+Object.defineProperty(o,'__proto__',{enumerable: false});
+assert.strictEqual(
+util.inspect(o,{showHidden: true}),
+"{ ['__proto__']: { a: 1 } }"
+);
 }
 
 {
@@ -3323,3 +3330,26 @@ assert.strictEqual(
 }
 }),'{ [Symbol(Symbol.iterator)]: [Getter] }');
 }
+
+{
+constsym=Symbol('bar');
+consto={
+'foo': 0,
+'Symbol(foo)': 0,
+[Symbol('foo')]: 0,
+[Symbol('foo()')]: 0,
+[sym]: 0,
+};
+Object.defineProperty(o,sym,{enumerable: false});
+
+assert.strictEqual(
+util.inspect(o,{showHidden: true}),
+'{\n'+
+' foo: 0,\n'+
+" 'Symbol(foo)': 0,\n"+
+' [Symbol(foo)]: 0,\n'+
+' [Symbol(foo())]: 0,\n'+
+' [Symbol(bar)]: 0\n'+
+'}',
+);
+}