[types] Use the TypeCache consistently for common types.

src/type-cache.cc

Index: src/type-cache.cc
diff --git a/src/type-cache.cc b/src/type-cache.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9ed86214876fa822c728a8d2b10e9b6341a39904
--- /dev/null
+++ b/src/type-cache.cc
@@ -0,0 +1,24 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "src/type-cache.h"
+
+#include "src/base/lazy-instance.h"
+#include "src/types-inl.h"
+
+namespace v8 {
+namespace internal {
+
+namespace {
+
+base::LazyInstance<TypeCache>::type kCache = LAZY_INSTANCE_INITIALIZER;
+
+}  // namespace
+
+
+// static
+TypeCache const& TypeCache::Get() { return kCache.Get(); }
+
+}  // namespace internal
+}  // namespace v8