error TS5107: Option 'target=ES5' is deprecated and will stop functioning in TypeScript 7.0. Specify compilerOption '"ignoreDeprecations": "6.0"' to silence this error.
parserES5SymbolProperty5.ts(2,5): error TS2564: Property '[Symbol.isRegExp]' has no initializer and is not definitely assigned in the constructor.
parserES5SymbolProperty5.ts(2,13): error TS2339: Property 'isRegExp' does not exist on type 'SymbolConstructor'.


!!! error TS5107: Option 'target=ES5' is deprecated and will stop functioning in TypeScript 7.0. Specify compilerOption '"ignoreDeprecations": "6.0"' to silence this error.
==== parserES5SymbolProperty5.ts (2 errors) ====
    class C {
        [Symbol.isRegExp]: string;
        ~~~~~~~~~~~~~~~~~
!!! error TS2564: Property '[Symbol.isRegExp]' has no initializer and is not definitely assigned in the constructor.
                ~~~~~~~~
!!! error TS2339: Property 'isRegExp' does not exist on type 'SymbolConstructor'.
    }