==== tests/cases/compiler/objectLitStructuralTypeMismatch.ts (1 errors) ====
    // Shouldn't compile
    var x: { a: number; } = { b: 5 };
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! objectLitStructuralTypeMismatch.ts(2,5): error TS2012: Cannot convert '{ b: number; }' to '{ a: number; }':
!!! 	Type '{ b: number; }' is missing property 'a' from type '{ a: number; }'.