=== tests/cases/conformance/es6/unicodeExtendedEscapes/unicodeExtendedEscapesInRegularExpressions13_ES5.ts ===

var x = /\u{DDDDD}/g;
>x : Symbol(x, Decl(unicodeExtendedEscapesInRegularExpressions13_ES5.ts, 1, 3))