tests/cases/compiler/overloadingOnConstantsInImplementation.ts(1,10): error TS2382: Specialized overload signature is not assignable to any non-specialized signature.
tests/cases/compiler/overloadingOnConstantsInImplementation.ts(2,10): error TS2382: Specialized overload signature is not assignable to any non-specialized signature.
tests/cases/compiler/overloadingOnConstantsInImplementation.ts(3,10): error TS2381: A signature with an implementation cannot use a string literal type.


==== tests/cases/compiler/overloadingOnConstantsInImplementation.ts (3 errors) ====
    function foo(a: 'hi', x: string);
             ~~~
!!! error TS2382: Specialized overload signature is not assignable to any non-specialized signature.
    function foo(a: 'hi', x: string);
             ~~~
!!! error TS2382: Specialized overload signature is not assignable to any non-specialized signature.
    function foo(a: 'hi', x: any) {
             ~~~
!!! error TS2381: A signature with an implementation cannot use a string literal type.
    }