[PATCH] abg-ir.cc: Fix peel_typedef_type(const type_base*).

[Giuliano Procida]

The various peel_*_type functions are supposed to return either an
underlying type (when something can be "peeled") or the original
type (when not).

This overload of peel_typedef_type currently returns null if the type
isn't a typedef. This patch corrects this.

The bug hasn't bitten as all existing calls are protected by an
is_typedef check. Note that the recursive calls within the function
are to the other (const type_base_sptr&) overload.

	* src/abg-ir.cc (peel_typedef_type): In the const type_base*
        overload, return the original argument rather than null if the
        type isn't actually a typedef.

Signed-off-by: Giuliano Procida <gprocida@google.com>
---
 src/abg-ir.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/abg-ir.cc b/src/abg-ir.cc
index 83602b8a..27d493cc 100644
--- a/src/abg-ir.cc
+++ b/src/abg-ir.cc
@@ -5249,7 +5249,7 @@ peel_typedef_type(const type_base* type)
 {
   const typedef_decl* t = is_typedef(type);
   if (!t)
-    return t;
+    return type;
 
   return peel_typedef_type(t->get_underlying_type()).get();
 }
-- 
2.25.1.481.gfbce0eb801-goog