perf_hooks: align @@toStringTag with other Web Performance implementations

lib/internal/perf/resource_timing.js

@@ -29,10 +29,6 @@ class PerformanceResourceTiming extends PerformanceEntry {
     throw new ERR_ILLEGAL_CONSTRUCTOR();
   }
 
-  get [SymbolToStringTag]() {
-    return 'PerformanceResourceTiming';
-  }
-
   get name() {
     validateInternalField(this, kRequestedUrl, 'PerformanceResourceTiming');
     return this[kRequestedUrl];
@@ -185,6 +181,11 @@ ObjectDefineProperties(PerformanceResourceTiming.prototype, {
   encodedBodySize: kEnumerableProperty,
   decodedBodySize: kEnumerableProperty,
   toJSON: kEnumerableProperty,
+  [SymbolToStringTag]: {
+    __proto__: null,
+    configurable: true,
+    value: 'PerformanceResourceTiming',
+  },
 });
 
 function createPerformanceResourceTiming(requestedUrl, initiatorType, timingInfo, cacheMode = '') {

lib/internal/perf/usertiming.js

@@ -98,10 +98,6 @@ class PerformanceMark {
     return this[kDetail];
   }
 
-  get [SymbolToStringTag]() {
-    return 'PerformanceMark';
-  }
-
   toJSON() {
     return {
       name: this.name,
@@ -116,6 +112,11 @@ ObjectSetPrototypeOf(PerformanceMark, PerformanceEntry);
 ObjectSetPrototypeOf(PerformanceMark.prototype, PerformanceEntry.prototype);
 ObjectDefineProperties(PerformanceMark.prototype, {
   detail: kEnumerableProperty,
+  [SymbolToStringTag]: {
+    __proto__: null,
+    configurable: true,
+    value: 'PerformanceMark',
+  },
 });
 
 class PerformanceMeasure extends PerformanceEntry {
@@ -127,13 +128,14 @@ class PerformanceMeasure extends PerformanceEntry {
     validateInternalField(this, kDetail, 'PerformanceMeasure');
     return this[kDetail];
   }
-
-  get [SymbolToStringTag]() {
-    return 'PerformanceMeasure';
-  }
 }
 ObjectDefineProperties(PerformanceMeasure.prototype, {
   detail: kEnumerableProperty,
+  [SymbolToStringTag]: {
+    __proto__: null,
+    configurable: true,
+    value: 'PerformanceMeasure',
+  },
 });
 
 function createPerformanceMeasure(name, start, duration, detail) {

test/parallel/test-perf-hooks-resourcetiming.js

@@ -17,6 +17,11 @@ assert(PerformanceResourceTiming);
 assert(performance.clearResourceTimings);
 assert(performance.markResourceTiming);
 
+assert.deepStrictEqual(
+  Object.getOwnPropertyDescriptor(PerformanceResourceTiming.prototype, Symbol.toStringTag),
+  { configurable: true, enumerable: false, value: 'PerformanceResourceTiming', writable: false },
+);
+
 function createTimingInfo({
   startTime = 0,
   redirectStartTime = 0,

test/parallel/test-perf-hooks-usertiming.js

@@ -6,6 +6,7 @@ const {
   PerformanceObserver,
   PerformanceEntry,
   PerformanceMark,
+  PerformanceMeasure,
   performance,
   performance: {
     nodeTiming,
@@ -18,6 +19,18 @@ assert(PerformanceMark);
 assert(performance.mark);
 assert(performance.measure);
 
+[PerformanceMark, PerformanceMeasure].forEach((c) => {
+  assert.deepStrictEqual(
+    Object.getOwnPropertyDescriptor(c.prototype, Symbol.toStringTag),
+    {
+      configurable: true,
+      enumerable: false,
+      writable: false,
+      value: c.prototype.constructor.name,
+    }
+  );
+});
+
 [undefined, 'a', 'null', 1, true].forEach((i) => {
   const m = performance.mark(i);
   assert(m instanceof PerformanceEntry);