Overload using nogc

[Jonathan Marler via Digitalmars-d]

Has the idea of function overloading via nogc been explored?
void func() @nogc
{
    // logic that does not use GC
}
void func()
{
    // logic that uses GC
}
void main(string[] args) // @nogc
{
    // if main is @nogc, then the @nogc version of func
    // will be called, otherwise, the GC version will be
    func();
}

This could be useful for the standard library to expose different 
implementations based on whether or not the application is using 
the GC.