tests/cases/conformance/salsa/main.js(2,13): error TS2339: Property 'foo' does not exist on type 'Alias'.
tests/cases/conformance/salsa/main.js(4,9): error TS2339: Property 'foo' does not exist on type 'Alias'.


==== tests/cases/conformance/salsa/mod1.js (0 errors) ====
    class Alias {
        bar() { return 1 }
    }
    module.exports = Alias;
    
==== tests/cases/conformance/salsa/main.js (2 errors) ====
    import A from './mod1'
    A.prototype.foo = 0
                ~~~
!!! error TS2339: Property 'foo' does not exist on type 'Alias'.
    new A().bar
    new A().foo
            ~~~
!!! error TS2339: Property 'foo' does not exist on type 'Alias'.
    