Factor out parameter list matching from ast_function::hir for later reuse.

Unfortunately, we still have two kinds of matching - one, with implicit
conversions (for use in calls) and another without them (for finding a
prototype to overwrite when processing a function body).  This commit
does not attempt to coalesce the two.

1 files changed, 8 insertions, 1 deletions

diff --git a/ir.h b/ir.h
index b9ab25b6453..118d97ffa3c 100644
--- a/ir.h
+++ b/ir.h
@@ -276,11 +276,18 @@ public:
    }
 
    /**
-    * Find a signature that matches a set of actual parameters.
+    * Find a signature that matches a set of actual parameters, taking implicit
+    * conversions into account.
     */
    const ir_function_signature *matching_signature(exec_list *actual_param);
 
    /**
+    * Find a signature that exactly matches a set of actual parameters without
+    * any implicit type conversions.
+    */
+   ir_function_signature *exact_matching_signature(exec_list *actual_ps);
+
+   /**
     * Name of the function.
     */
    const char *name;