Function overload with template alias error

[André Stein]

Hi,

I'm trying to write a template function which takes a templated alias to 
another type:

struct test(T)
{
}

template aliasT(T)
{
    alias test!(T) aliasT;
}

void foo(T)(test!T t) { // works
}

void foo2(T)(aliasT!T t) { // doesn't work
}

int main(string[] args)
{
    test!(int) t;
    aliasT!(int) t2;
    foo(t);
    foo2(t2); // error
    return 0;
}


When foo2(t2) is called which takes an alias to test!T as argument I get 
the following error from dmd:

*(21): Error: template variant.foo2(T) does not match any function 
template declaration
*(21): Error: template variant.foo2(T) cannot deduce template function 
from argument types !()(test!(int))

I thought that aliasT!T and test!T have the same internal types and the 
compiler would be able deduce the template parameters. Am I missing 
something or is this a bug in DMD? This is a reduced test case from a 
piece of code where I tried to write an templated overload to 
std.variant.Algebraic.

Thanks,
André