Remove now-unnecessary VectorTraits specializations.

Source/wtf/VectorTest.cpp

 /*
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 268 matching lines @@
     EXPECT_EQ(3u, vectorB.size());
     EXPECT_EQ(2, vectorB.at(0).get());
     EXPECT_EQ(3, vectorB.at(1).get());
     EXPECT_EQ(4, vectorB.at(2).get());
 
     vectorB.swap(vectorA);
 }
 
 class Comparable {
 };
-bool operator==(const Comparable& a, const Comparable& b) { return true; }
 
 template<typename T> void compare()
 {
     EXPECT_TRUE(Vector<T>() == Vector<T>());
     EXPECT_FALSE(Vector<T>(1) == Vector<T>(0));
     EXPECT_FALSE(Vector<T>() == Vector<T>(1));
     EXPECT_TRUE(Vector<T>(1) == Vector<T>(1));
 }
 
 TEST(VectorTest, Compare)
 {
     compare<int>();
     compare<Comparable>();
     compare<WTF::String>();
 }
+
+class PODTest {
+public:
+    Comparable m_struct;
+    WTF::WeakHandlingFlag m_enum;
+};
+
+TEST(VectorTest, Traits)
+{
+    // FIXME: expand, test more types.
+    COMPILE_ASSERT(!WTF::VectorTraits<PODTest>::needsDestruction, ExpectedToHaveATrivialDestructor);
+    COMPILE_ASSERT(WTF::VectorTraits<PODTest>::canInitializeWithMemset, ExpectedToBeInitializableWithMemset);
+}
+
 } // namespace