[committed] analyzer: log out-edge description in exploded_graph::process_node

[David Malcolm via Gcc-patches]

I found this logging tweak very helpful when working on
PR analyzer/106284.

Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.
Pushed to trunk as r13-1747-g434d521d118fc7.

gcc/analyzer/ChangeLog:
        * engine.cc (exploded_graph::process_node): Show any description
        of the out-edge when logging it for consideration.

Signed-off-by: David Malcolm <dmalc...@redhat.com>
---
 gcc/analyzer/engine.cc | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/gcc/analyzer/engine.cc b/gcc/analyzer/engine.cc
index 9ffcc410839..4f7f9d03900 100644
--- a/gcc/analyzer/engine.cc
+++ b/gcc/analyzer/engine.cc
@@ -3974,8 +3974,12 @@ exploded_graph::process_node (exploded_node *node)
          {
            found_a_superedge = true;
            if (logger)
-             logger->log ("considering SN: %i -> SN: %i",
-                          succ->m_src->m_index, succ->m_dest->m_index);
+             {
+               label_text succ_desc (succ->get_description (false));
+               logger->log ("considering SN: %i -> SN: %i (%s)",
+                            succ->m_src->m_index, succ->m_dest->m_index,
+                            succ_desc.get ());
+             }
 
            program_point next_point
              = program_point::before_supernode (succ->m_dest, succ,
-- 
2.26.3