Conver IR structures to use exec_list instead of simple_node
diff --git a/hir_field_selection.cpp b/hir_field_selection.cpp
index 1dd8126..326a105 100644
--- a/hir_field_selection.cpp
+++ b/hir_field_selection.cpp
@@ -127,7 +127,7 @@
 
 struct ir_instruction *
 _mesa_ast_field_selection_to_hir(const ast_expression *expr,
-				 simple_node *instructions,
+				 exec_list *instructions,
 				 struct _mesa_glsl_parse_state *state)
 {
    ir_instruction *op;