test-repo/changelog_unreleased/javascript/10322.md

Disable Babel's error recovery for invalid escaped characters in identifiers (#10322 by @thorn0)

// Input
const \u{20} = 1

// Prettier stable
const   = 1;

// Prettier main
[error] stdin: SyntaxError: Invalid Unicode escape (1:7)
[error] > 1 | const \u{20} = 1
[error]     |       ^         ^