fix clearTimeout.name / clearInterval.name (denoland#2540)

js/globals.ts

@@ -63,8 +63,8 @@ console[consoleTypes.isConsoleInstance] = true;
 window.atob = textEncoding.atob;
 window.btoa = textEncoding.btoa;
 window.fetch = fetchTypes.fetch;
-window.clearTimeout = timers.clearTimer;
-window.clearInterval = timers.clearTimer;
+window.clearTimeout = timers.clearTimeout;
+window.clearInterval = timers.clearInterval;
 window.console = console;
 window.setTimeout = timers.setTimeout;
 window.setInterval = timers.setInterval;

js/timers.ts

@@ -249,7 +249,7 @@ export function setInterval(
 }
 
 /** Clears a previously set timer by id. AKA clearTimeout and clearInterval. */
-export function clearTimer(id: number): void {
+function clearTimer(id: number): void {
   id = Number(id);
   const timer = idMap.get(id);
   if (timer === undefined) {
@@ -260,3 +260,11 @@ export function clearTimer(id: number): void {
   unschedule(timer);
   idMap.delete(timer.id);
 }
+
+export function clearTimeout(id: number): void {
+  clearTimer(id);
+}
+
+export function clearInterval(id: number): void {
+  clearTimer(id);
+}

js/timers_test.ts

@@ -1,5 +1,5 @@
 // Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
-import { test, assert, assertEquals } from "./test_util.ts";
+import { test, assert, assertEquals, assertNotEquals } from "./test_util.ts";
 
 function deferred(): {
   promise: Promise<{}>;
@@ -243,3 +243,12 @@ test(async function clearTimeoutShouldConvertToNumber(): Promise<void> {
   clearTimeout((obj as unknown) as number);
   assert(called);
 });
+
+test(function testFunctionName(): void {
+  assertEquals(clearTimeout.name, "clearTimeout");
+  assertEquals(clearInterval.name, "clearInterval");
+});
+
+test(function clearTimeoutAndClearIntervalNotBeEquals(): void {
+  assertNotEquals(clearTimeout, clearInterval);
+});