Implement MarkGCCard.

Change-Id: Ic004750a303897d33a5459a41ac60ac552926e07
diff --git a/src/compiler_llvm/art_module.ll b/src/compiler_llvm/art_module.ll
index 110b393..6f7fdfb 100644
--- a/src/compiler_llvm/art_module.ll
+++ b/src/compiler_llvm/art_module.ll
@@ -165,6 +165,8 @@
 ; Temporary runtime support, will be removed in the future
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
+declare void @art_mark_gc_card_from_code(%JavaObject*, %JavaObject*)
+
 declare %JavaObject* @art_ensure_resolved_from_code(%JavaObject*,
                                                     %JavaObject*,
                                                     i32,