[glibmm/gmmproc-refactor] Fix g_variant_type_peek_string() wrapper.

[Krzesimir Nowak <krnowak src gnome org>]

commit 44d03145e52dc725fac4522c5d5e59f5562493bd
Author: Krzesimir Nowak <qdlacz gmail com>
Date:   Sun Jul 22 16:09:46 2012 +0200

    Fix g_variant_type_peek_string() wrapper.

 glib/src/varianttype.hg |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/glib/src/varianttype.hg b/glib/src/varianttype.hg
index 6e37b20..0843a5c 100644
--- a/glib/src/varianttype.hg
+++ b/glib/src/varianttype.hg
@@ -119,7 +119,9 @@ public:
 
   //TODO: Use something instead of gsize?
   _WRAP_METHOD(gsize _get_string_length() const, g_variant_type_get_string_length)
+  _PUSH_NAMED_CONV(non_cstring_to_stdstring, const gchar*, std::string, std::string(##ARG##, g_variant_type_get_string_length(gobj())), NONE, NONE)
   _WRAP_METHOD(std::string get_string() const, g_variant_type_peek_string)
+  _POP_NAMED_CONV(non_cstring_to_stdstring)
   _IGNORE(g_variant_type_dup_string)
 
   _WRAP_METHOD(bool is_definite() const, g_variant_type_is_definite)