=== tests/cases/compiler/duplicateAnonymousModuleClasses.ts ===
module F {
>F : typeof F

    class Helper {
>Helper : Helper

    }

}


module F {
>F : typeof F
    
    // Should not be an error
    class Helper {
>Helper : Helper

    }

}

module Foo {
>Foo : typeof Foo

    class Helper {
>Helper : Helper

    }

}


module Foo {
>Foo : typeof Foo
    
    // Should not be an error
    class Helper {
>Helper : Helper

    }

}

module Gar {
>Gar : typeof Gar

    module Foo {
>Foo : typeof Foo

        class Helper {
>Helper : Helper

        }

    }


    module Foo {
>Foo : typeof Foo
    
        // Should not be an error
        class Helper {
>Helper : Helper

        }

    }
}