TypeScript/tests/baselines/reference/parserMemberAccessorDeclaration17.errors.txt

==== tests/cases/conformance/parser/ecmascript5/MemberAccessorDeclarations/parserMemberAccessorDeclaration17.ts (1 errors) ====
    class C {
       set Foo(a?: number) { }
           ~~~
!!! A 'set' accessor cannot have an optional parameter.
    }