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

src/builtins.cc

Index: src/builtins.cc
===================================================================
--- src/builtins.cc	(revision 5365)
+++ src/builtins.cc	(working copy)
@@ -243,7 +243,7 @@
 }
 
 
-static Object* AllocateJSArray() {
+NOIGNORE static Object* AllocateJSArray() {
   JSFunction* array_function =
       Top::context()->global_context()->array_function();
   Object* result = Heap::AllocateJSObject(array_function);
@@ -252,7 +252,7 @@
 }
 
 
-static Object* AllocateEmptyJSArray() {
+NOIGNORE static Object* AllocateEmptyJSArray() {
   Object* result = AllocateJSArray();
   if (result->IsFailure()) return result;
   JSArray* result_array = JSArray::cast(result);