==== tests/cases/compiler/memberOverride.ts (2 errors) ====
    // An object initialiser accepts the first definition for the same property with a different type signature
    // Should compile, since the second declaration of a overrides the first
    var x = {
        a: "", 
        a: 5
        ~
!!! Duplicate identifier 'a'.
    }
    
    var n: number = x.a;
        ~
!!! Type 'string' is not assignable to type 'number'.