Description:
------------
I think the switch instruction should allow a nice technique for the default case:

like this :

Reproduce code:
---------------
switch ($x):

case 'a':
 //some code (eg. 10 lines)
break;

case 'b':
 //some other code (eg. 10 lines)
break;

case 'n':
 //etc...
break;

// And then what that should be nice

default:
goto case 'a';
break;

endswitch;

Expected result:
----------------
Avoid the duplication of the content of case 'A' if we need the default case to act same case 'A'.