[turbofan] Remove the unused asm.js types from TypeCache.

src/compiler/type-cache.cc

Index: src/compiler/type-cache.cc
diff --git a/src/type-cache.cc b/src/compiler/type-cache.cc
similarity index 84%
rename from src/type-cache.cc
rename to src/compiler/type-cache.cc
index d05aaa1f4dd0f23b839db62f68f8ac60b657de79..cd80dc315af3d42aad4848f97c565e04f25017a9 100644
--- a/src/type-cache.cc
+++ b/src/compiler/type-cache.cc
@@ -2,12 +2,13 @@
 // 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/compiler/type-cache.h"
 
 #include "src/base/lazy-instance.h"
 
 namespace v8 {
 namespace internal {
+namespace compiler {
 
 namespace {
 
@@ -15,9 +16,9 @@ base::LazyInstance<TypeCache>::type kCache = LAZY_INSTANCE_INITIALIZER;
 
 }  // namespace
 
-
 // static
 TypeCache const& TypeCache::Get() { return kCache.Get(); }
 
+}  // namespace compiler
 }  // namespace internal
 }  // namespace v8