Move Hydrogen and Lithium to src/crankshaft/

src/crankshaft/lithium.h

Index: src/crankshaft/lithium.h
diff --git a/src/lithium.h b/src/crankshaft/lithium.h
similarity index 99%
rename from src/lithium.h
rename to src/crankshaft/lithium.h
index 97c5c1d9277b1ae509d862ed615519ebccc7c598..126517e2eb860e74e064157e6be19783d5b94a78 100644
--- a/src/lithium.h
+++ b/src/crankshaft/lithium.h
@@ -2,14 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef V8_LITHIUM_H_
-#define V8_LITHIUM_H_
+#ifndef V8_CRANKSHAFT_LITHIUM_H_
+#define V8_CRANKSHAFT_LITHIUM_H_
 
 #include <set>
 
 #include "src/allocation.h"
 #include "src/bailout-reason.h"
-#include "src/hydrogen.h"
+#include "src/crankshaft/hydrogen.h"
 #include "src/safepoint-table.h"
 #include "src/zone-allocator.h"
 
@@ -838,4 +838,4 @@ class LCodeGen;
 }  // namespace internal
 }  // namespace v8
 
-#endif  // V8_LITHIUM_H_
+#endif  // V8_CRANKSHAFT_LITHIUM_H_