[tree-ssa] More prep work for CFG EH cleanups

[law@redhat.com]

In message <wvlptl72kdk.fsf@prospero.boston.redhat.com>, Jason Merrill writes:
 >On Thu, 19 Jun 2003 23:57:24 -0600, law@redhat.com wrote:
 >
 >> +       *expr_p = build (MODIFY_EXPR, TREE_TYPE (TREE_OPERAND (*expr_p, 0))
 >,
 >> + 		       TREE_OPERAND (*expr_p, 0), tmp);
 >
 >You should be able to just do
 >
 >TREE_OPERAND (*expr_p, 1) = tmp;
Agreed.  Testing now.
jeff