=== tests/cases/conformance/es6/unicodeExtendedEscapes/unicodeExtendedEscapesInRegularExpressions15_ES6.ts ===

var x = /\u{abcd}\u{ef12}\u{3456}\u{7890}/g;
>x : Symbol(x, Decl(unicodeExtendedEscapesInRegularExpressions15_ES6.ts, 1, 3))