E0207: code point in Unicode escape sequence must not be greater than U+10FFFF
Identifiers, string literals, and template literals can contain Unicode escape
sequences starting with \u. It is a syntax error for a Unicode escape sequence
to refer to a character which is beyond the range of valid Unicode code points
(U+0000 to U+10FFFF):
class ChirpSound {}
let bird\u{360000} = new ChirpSound();
let x = "hello\u{abcdef}";
To fix this error, make sure that the escaped code point is between U+0000 and U+10FFFF inclusive.
class ChirpSound {}
let bird\u{3600} = new ChirpSound();
let x = "hello\u{abcde}";
Introduced in quick-lint-js version 0.4.0.