==== tests/cases/compiler/cloduleWithDuplicateMember2.ts (3 errors) ====
    class C {
        set x(y) { }
            ~
!!! Accessors are only available when targeting ECMAScript 5 and higher.
        static set y(z) { }
                   ~
!!! Accessors are only available when targeting ECMAScript 5 and higher.
    }
    
    module C {
        export var x = 1;
    }
    module C {
        export function x() { }
                        ~
!!! Duplicate identifier 'x'.
    }