==== tests/cases/compiler/overloadOnConstDuplicateOverloads1.ts (4 errors) ====
    function foo(a: 'hi', x: string);
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! overloadOnConstDuplicateOverloads1.ts(1,1): error TS2154: Specialized overload signature is not assignable to any non-specialized signature.
    function foo(a: 'hi', x: string);
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! overloadOnConstDuplicateOverloads1.ts(2,1): error TS2144: Duplicate overload signature for 'foo'.
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! overloadOnConstDuplicateOverloads1.ts(2,1): error TS2154: Specialized overload signature is not assignable to any non-specialized signature.
    function foo(a: any, x: any) {
    }
    
    function foo2(a: 'hi', x: string);
    function foo2(a: 'hi', x: string);
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! overloadOnConstDuplicateOverloads1.ts(7,1): error TS2144: Duplicate overload signature for 'foo2'.
    function foo2(a: string, x: string);
    function foo2(a: any, x: any) {
    }