Rename "NoBarrier" memory operations to "Relaxed".

test/cctest/cctest.h

Index: test/cctest/cctest.h
diff --git a/test/cctest/cctest.h b/test/cctest/cctest.h
index 8ef5d234184afad1306cb75f078b7eb175b15e49..2aae22c10921899f171ab40b83656dc635d935b5 100644
--- a/test/cctest/cctest.h
+++ b/test/cctest/cctest.h
@@ -110,7 +110,7 @@ class CcTest {
 
   static v8::Isolate* isolate() {
     CHECK(isolate_ != NULL);
-    v8::base::NoBarrier_Store(&isolate_used_, 1);
+    v8::base::Relaxed_Store(&isolate_used_, 1);
     return isolate_;
   }