* statement.cs (If.Emit): Fix a bug that generated incorrect code
on If. Basically, we have to return `true' (ie, we do return to
our caller) only if both branches of the if return.
* expression.cs (Binary.Emit): LogicalOr and LogicalAnd are
short-circuit operators, handle them as short circuit operators.
svn path=/trunk/mcs/; revision=1427
