tests/cases/conformance/es6/unicodeExtendedEscapes/unicodeExtendedEscapesInStrings12_ES6.ts(2,21): error TS1198: An extended Unicode escape value must be between 0x0 and 0x10FFFF inclusive.


==== tests/cases/conformance/es6/unicodeExtendedEscapes/unicodeExtendedEscapesInStrings12_ES6.ts (1 errors) ====
    
    var x = "\u{FFFFFFFF}";
                        
!!! error TS1198: An extended Unicode escape value must be between 0x0 and 0x10FFFF inclusive.