[Nickle]break/continue/return from catch block

[Keith Packard]

The question was the proper interpretation of:

	exception e (int i);

	int f ()
	{
	    try
	    {
		raise e (7);
	    }
	    catch e (int i)
	    {
		return 12;	/* where does this go? */
	    }
	    return 3;
	}


The right answer is to return from 'f', but the catch block is implemented 
internally as a lambda.  I've fixed this as well as fixing 'break' and 
'continue' in the same context.  Break/continue jump to the appropriate 
enclosing loop construct.

Continuations are good.

Keith Packard        XFree86 Core Team        HP Cambridge Research Lab