tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences.ts(7,18): error TS1125: Hexadecimal digit expected.
tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences.ts(8,15): error TS1125: Hexadecimal digit expected.
tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences.ts(8,33): error TS1125: Hexadecimal digit expected.
tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences.ts(8,75): error TS1125: Hexadecimal digit expected.
tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences.ts(9,18): error TS1125: Hexadecimal digit expected.
tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences.ts(9,27): error TS1125: Hexadecimal digit expected.
tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences.ts(9,51): error TS1125: Hexadecimal digit expected.


==== tests/cases/conformance/es2018/invalidTaggedTemplateEscapeSequences.ts (7 errors) ====
    function tag (str: any, ...args: any[]): any {
      return str
    }
    
    const a = tag`123`
    const b = tag`123 ${100}`
    const x = tag`\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`;
                     
!!! error TS1125: Hexadecimal digit expected.
    const y = `\u{hello} ${ 100 } \xtraordinary ${ 200 } wonderful ${ 300 } \uworld`; // should error with NoSubstitutionTemplate
                  
!!! error TS1125: Hexadecimal digit expected.
                                    
!!! error TS1125: Hexadecimal digit expected.
                                                                              
!!! error TS1125: Hexadecimal digit expected.
    const z = tag`\u{hello} \xtraordinary wonderful \uworld` // should work with Tagged NoSubstitutionTemplate
                     
!!! error TS1125: Hexadecimal digit expected.
                              
!!! error TS1125: Hexadecimal digit expected.
                                                      
!!! error TS1125: Hexadecimal digit expected.
    
    const a1 = tag`${ 100 }\0` // \0
    const a2 = tag`${ 100 }\00` // \\00
    const a3 = tag`${ 100 }\u` // \\u
    const a4 = tag`${ 100 }\u0` // \\u0
    const a5 = tag`${ 100 }\u00` // \\u00
    const a6 = tag`${ 100 }\u000` // \\u000
    const a7 = tag`${ 100 }\u0000` // \u0000
    const a8 = tag`${ 100 }\u{` // \\u{
    const a9 = tag`${ 100 }\u{10FFFF}` // \\u{10FFFF
    const a10 = tag`${ 100 }\u{1f622` // \\u{1f622
    const a11 = tag`${ 100 }\u{1f622}` // \u{1f622}
    const a12 = tag`${ 100 }\x` // \\x
    const a13 = tag`${ 100 }\x0` // \\x0
    const a14 = tag`${ 100 }\x00` // \x00
    