`eval?.()` is now an indirect eval

Bug Report

There has apparently been a recent change to the behavior of eval?.() in all major JavaScript engines. It is now considered an indirect eval instead of a direct eval. This behavior was changed in July 2020. TypeScript is still compiling it as a direct eval and I didn't see an issue about this, so I created this issue.

More context: https://bugs.chromium.org/p/v8/issues/detail?id=10630

🔎 Search Terms

optional chain direct indirect eval scope

🕗 Version & Regression Information

• This is the behavior in every version I tried

⏯ Playground Link

Playground link with relevant code

💻 Code

globalThis.a = "global";
(a => eval?.("console.log(a)"))("local");

🙁 Actual behavior

When compiled with TypeScript, this prints local instead. That matches the behavior of older JavaScript runtimes such as node v14 but doesn't match the latest JavaScript runtimes.

🙂 Expected behavior

This code now prints global when run in an up-to-date browser or in node v15, so it should print global when compiled with TypeScript as well.

まず、提供された Playground の例を最新の JavaScript ランタイムでコンパイルして実行し、生成された JavaScript を報告されたグローバル対ローカルの結果と比較します。payload にはソースファイルやテストの名前がないため、オプショナルコール式を処理するコンパイラパスを特定し、間接 eval の期待される動作を示すカバレッジを追加します。