Compiler bug? Functions as Array Properties doesn't work with nested functions

[simendsjo]

The spec doesn't mention anything about nested functions here.

This works

void foo(int[] a, int x) { };

void main()
{
        int[] array;
        foo(array, 3);
        array.foo(3);
}


But this gives "undefined identifier module t.foo"

void main()
{
        void foo(int[] a, int x) { };
        int[] array;
        foo(array, 3);
        array.foo(3);
}