parserExportAsFunctionIdentifier.ts(6,9): error TS2454: Variable 'f' is used before being assigned.


==== parserExportAsFunctionIdentifier.ts (1 errors) ====
    interface Foo {
           export(): string;
    }
    
    var f: Foo;
    var x = f.export();
            ~
!!! error TS2454: Variable 'f' is used before being assigned.
    