1461 – Local variable as template alias parameter breaks CTFE

The following code fails to compile with error, "cannot evaluate generate() at compile time." This error is stopped by declaring x in global scope.
void main()
{
 int x;
 const string text = Gen!(x).generate();
}
template Gen(alias A)
{
 string generate()
 {
 return null;
 }
}

Changed version, since this applied to D1.x as well. Still not fixed in D1.031.
For phobos2, the code now needs to use 'enum' instead of const to trigger the behaviour:
---
void main()
{
 int x;
 enum string text = Gen!(x).generate();
}
template Gen(alias A)
{
 string generate()
 {
 return null;
 }
}

Fixed dmd 1.047 and 2.032