[COMMITTED] Call set_undefined from irange constructor.

[Aldy Hernandez via Gcc-patches]

Small clean up to use set_undefined instead of duplicating the
functionality therein.

Tested on x86-64 Linux.

gcc/ChangeLog:

        * value-range.h (irange::irange): Use set_undefined.
---
 gcc/value-range.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/gcc/value-range.h b/gcc/value-range.h
index fe7795b55a6..b64e02426ca 100644
--- a/gcc/value-range.h
+++ b/gcc/value-range.h
@@ -397,9 +397,8 @@ inline
 irange::irange (tree *base, unsigned nranges)
 {
   m_base = base;
-  m_num_ranges = 0;
   m_max_ranges = nranges;
-  m_kind = VR_UNDEFINED;
+  set_undefined ();
 }
 
 // Constructors for int_range<>.
-- 
2.35.1