version'ing issue

[Koroskin Denis]

This won't compile under D 1.x:

class SomeClass
{
     version( D_Version2 )
     {
         invariant void someMethod()
         {
         }
     } else {
         const void someMethod()
         {
         }
     }
}

int main()
{
     return 0;
}


Maybe 'version'ing should be less restrictive on syntax so that backward  
compatibility could still be possible.
Now I'm a little stuck with porting code from D2.012 to D1.028.

Or should we just choose one version and stick with it?