Get gcc to check that we don't ignore return values of functions that can...

src/accessors.h

Index: src/accessors.h
===================================================================
--- src/accessors.h	(revision 5365)
+++ src/accessors.h	(working copy)
@@ -75,8 +75,10 @@
   };
 
   // Accessor functions called directly from the runtime system.
-  static Object* FunctionGetPrototype(Object* object, void*);
-  static Object* FunctionSetPrototype(JSObject* object, Object* value, void*);
+  NOIGNORE static Object* FunctionGetPrototype(Object* object, void*);
+  NOIGNORE static Object* FunctionSetPrototype(JSObject* object,
+                                               Object* value,
+                                               void*);
  private:
   // Accessor functions only used through the descriptor.
   static Object* FunctionGetLength(Object* object, void*);