Specialization gets broken sometimes. It's possibly related to module facility in D.

this works ok(outputs "1 0"):

template IsArray(T)        { static const bool IsArray = false; }
template IsArray(T : T[])  { static const bool IsArray = true; }

void main()
{
    printf("%d %d\n",IsArray!(int[]),IsArray!(int));
}

1. When some module, containing a bunch templates is imported,output is "0
0".
2. When template IsArray is moved into another module, containing other
templates as well,  output is "0 0".

However when I tried to isolate the bug by removing uninvolved templates, it
disappeared.
So I am including the complete code which causes the described behaviour.

Added to DStress as http://dstress.kuehne.cn/run/template_10.d http://dstress.kuehne.cn/run/template_11.d http://dstress.kuehne.cn/run/template_12.d

Thomas