From 85a093735244737ab11ead27f980afdcf4e7a4ae Mon Sep 17 00:00:00 2001
From: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>
Date: Tue, 9 Aug 2022 18:49:55 +0000
Subject: [PATCH] Try `push`ing undefined to create a packed Array.

---
 src/compiler/parser.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index be298aaf050..dc53215263b 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -97,7 +97,8 @@ namespace ts {
 
     type ForEachChildFunction = <T>(node: any, cbNode: (node: Node) => T | undefined, cbNodes?: (nodes: NodeArray<Node>) => T | undefined) => T | undefined;
 
-    const forEachChildTable = new Array<ForEachChildFunction>(SyntaxKind.Count);
+    const forEachChildTable: Array<ForEachChildFunction | undefined> = [];
+    for (let i = 0; i < SyntaxKind.Count; i++) forEachChildTable.push(undefined);
     forEachChildTable[SyntaxKind.QualifiedName] = forEachQualifiedName;
     forEachChildTable[SyntaxKind.TypeParameter] = forEachTypeParameter;
     forEachChildTable[SyntaxKind.ShorthandPropertyAssignment] = forEachShorthandPropertyAssignment;