[pushed] analyzer: fix some svalue::dump_to_pp implementations

[pushed] analyzer: fix some svalue::dump_to_pp implementations

[David Malcolm]

Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.
Pushed to trunk as r14-3000-g187b213ddbe7ea.

gcc/analyzer/ChangeLog:
	* svalue.cc (region_svalue::dump_to_pp): Support NULL type.
	(constant_svalue::dump_to_pp): Likewise.
	(initial_svalue::dump_to_pp): Likewise.
	(conjured_svalue::dump_to_pp): Likewise.  Fix missing print of the
	type.
---
 gcc/analyzer/svalue.cc | 27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)

diff --git a/gcc/analyzer/svalue.cc b/gcc/analyzer/svalue.cc
index 4395018dbc3..5d5c80f88c6 100644
--- a/gcc/analyzer/svalue.cc
+++ b/gcc/analyzer/svalue.cc
@@ -714,8 +714,11 @@ region_svalue::dump_to_pp (pretty_printer *pp, bool simple) const
   else
     {
       pp_string (pp, "region_svalue(");
-      print_quoted_type (pp, get_type ());
-      pp_string (pp, ", ");
+      if (get_type ())
+	{
+	  print_quoted_type (pp, get_type ());
+	  pp_string (pp, ", ");
+	}
       m_reg->dump_to_pp (pp, simple);
       pp_string (pp, ")");
     }
@@ -811,8 +814,11 @@ constant_svalue::dump_to_pp (pretty_printer *pp, bool simple) const
   else
     {
       pp_string (pp, "constant_svalue(");
-      print_quoted_type (pp, get_type ());
-      pp_string (pp, ", ");
+      if (get_type ())
+	{
+	  print_quoted_type (pp, get_type ());
+	  pp_string (pp, ", ");
+	}
       dump_tree (pp, m_cst_expr);
       pp_string (pp, ")");
     }
@@ -1029,8 +1035,11 @@ initial_svalue::dump_to_pp (pretty_printer *pp, bool simple) const
   else
     {
       pp_string (pp, "initial_svalue(");
-      print_quoted_type (pp, get_type ());
-      pp_string (pp, ", ");
+      if (get_type ())
+	{
+	  print_quoted_type (pp, get_type ());
+	  pp_string (pp, ", ");
+	}
       m_reg->dump_to_pp (pp, simple);
       pp_string (pp, ")");
     }
@@ -1910,7 +1919,11 @@ conjured_svalue::dump_to_pp (pretty_printer *pp, bool simple) const
   else
     {
       pp_string (pp, "conjured_svalue (");
-      pp_string (pp, ", ");
+      if (get_type ())
+	{
+	  print_quoted_type (pp, get_type ());
+	  pp_string (pp, ", ");
+	}
       pp_gimple_stmt_1 (pp, m_stmt, 0, (dump_flags_t)0);
       pp_string (pp, ", ");
       m_id_reg->dump_to_pp (pp, simple);
-- 
2.26.3