tests/cases/compiler/index.js(2,10): error TS2339: Property 'yadda' does not exist on type 'toString'.


==== tests/cases/compiler/index.js (1 errors) ====
    function toString() {
        this.yadda
             ~~~~~
!!! error TS2339: Property 'yadda' does not exist on type 'toString'.
        this.someValue = "";
    }