Fix OrderedHashSet::Remove caller in debug-only code after r21408

TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/294473011

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21409 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/cctest/test-dictionary.cc

@@ -187,7 +187,9 @@ static void TestHashSetCausesGC(Handle<HashSet> table) {
   CHECK(gc_count == isolate->heap()->gc_count());
 
   // Calling Remove() will not cause GC in this case.
-  table = HashSet::Remove(table, key);
+  bool was_present = false;
+  table = HashSet::Remove(table, key, &was_present);
+  CHECK(!was_present);
   CHECK(gc_count == isolate->heap()->gc_count());
 
   // Calling Add() should cause GC.