else not attaching properly to if

[nobody]

I do not think it should ever be the case that this block:

   if(false)
     if(true)
     {
       assert(false);
     }
   else
   {
     assert(true);
   }

should ever be functionally different from this block:


   if(false)
   {
     if(true)
     {
       assert(false);
     }
   }
   else
   {
     assert(true);
   }

The compiler agrees with me in this simple case. However, I have 
found a spot in my code where the second block results in 
correct behaviour and the first block does not. This is surely a 
compiler (v1.015) bug? Here is the big picture:

   struct S
   {
     void f()
     {
       while()
       {
         foreach()
         {
           if(...)
           {
             if(...)
             {

             }

             else
               if(...)
               {

               }
           }

           else
           {
             if(...)
             { // need brackets or next else is not attached
               if(...)
               {

               }
             }
             else
             {
               if(...)
               {

               }

               else if(...)
               {

               }

               else if(...)
               {

               }

               else if(...)
               {

               }
             }
           }
         }
       }
     }
   }