Diff between function and delegate

[Meta via Digitalmars-d-learn]

On Monday, 27 June 2016 at 19:59:05 UTC, Mathias Lang wrote:
> - You use `scope myDG = (Params) { body... }`

It looks like i is still moved to the heap but marking `test` 
with @nogc compiles successfully. Then when I run the code the 
assertion is triggered. What exactly is going on here?

auto test() @nogc //Compiles
{
     int i = 10;
     scope dg = { assert(i == 10); }; //AssertFailure
     i = 11;

     return dg;
}

void main()
{
     auto dg = test();
     dg();
}