Pasting now forces tokenization

[alexdima]

Found while verifying #209418

• Download checker.ts
• scroll to the bottom
• select and place in clipboard (notice the bad leading indent):

reportInferenceFallback(node: Node): void {
        if (this.inner?.reportInferenceFallback) {
            this.inner.reportInferenceFallback(node);
        }
    }

• make some room (newlines) without indentation for where to paste
• reload the window
• paste
• 🐛 observe that the window freezes until tokenization occurs
• this is because tokenization is forced when it is not cheap
• this use-case is something to keep in mind when new calls to forceTokenization are added.

insiders

Kapture.2024-05-28.at.12.40.39.mp4

stable 1.89.1

Kapture.2024-05-28.at.12.39.19.mp4

cc @hediet