Make ir_function::signatures private

diff --git a/ir.h b/ir.h
index 3322ea9..261d192 100644 (file)
--- a/ir.h
+++ b/ir.h
@@ -205,6 +205,7 @@ public:
     */
    const char *name;
 
+private:
    /**
     * Set of overloaded functions with this name.
     */