Fixed crash.

debugger/stabs.c

diff --git a/debugger/stabs.c b/debugger/stabs.c
index 673fae2..6a11ff3 100644
--- a/debugger/stabs.c
+++ b/debugger/stabs.c
@@ -229,6 +229,7 @@
   DBG_free(include_defs);
   include_defs = NULL;
   num_include_def = 0;
+  num_alloc_include_def = 0;
   DBG_free(cu_vector);
   cu_vector = NULL;
   cu_nrofentries = 0;