Move Hydrogen and Lithium to src/crankshaft/

src/crankshaft/hydrogen-dehoist.h

Index: src/crankshaft/hydrogen-dehoist.h
diff --git a/src/hydrogen-dehoist.h b/src/crankshaft/hydrogen-dehoist.h
similarity index 75%
rename from src/hydrogen-dehoist.h
rename to src/crankshaft/hydrogen-dehoist.h
index 11e83860e1374cc7213685da64594b25f25159ff..d68f62cf7bcb5438720956ad2040a9387b80d112 100644
--- a/src/hydrogen-dehoist.h
+++ b/src/crankshaft/hydrogen-dehoist.h
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef V8_HYDROGEN_DEHOIST_H_
-#define V8_HYDROGEN_DEHOIST_H_
+#ifndef V8_CRANKSHAFT_HYDROGEN_DEHOIST_H_
+#define V8_CRANKSHAFT_HYDROGEN_DEHOIST_H_
 
-#include "src/hydrogen.h"
+#include "src/crankshaft/hydrogen.h"
 
 namespace v8 {
 namespace internal {
@@ -26,4 +26,4 @@ class HDehoistIndexComputationsPhase : public HPhase {
 }  // namespace internal
 }  // namespace v8
 
-#endif  // V8_HYDROGEN_DEHOIST_H_
+#endif  // V8_CRANKSHAFT_HYDROGEN_DEHOIST_H_