What is TypeIdent in the ABI spec ?

[Walter Bright via Digitalmars-d]

On 7/4/2015 3:14 PM, deadalnix wrote:
> http://dlang.org/abi.html#TypeIdent
>
> TypeIdent:
>      I QualifiedName
>
> What is that ?

It's used when there's an unresolved type.