Move machine-type.h from src/compiler to src/.

src/machine-type.h

 // Copyright 2014 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.
 
-#ifndef V8_COMPILER_MACHINE_TYPE_H_
-#define V8_COMPILER_MACHINE_TYPE_H_
+#ifndef V8_MACHINE_TYPE_H_
+#define V8_MACHINE_TYPE_H_
 
 #include <iosfwd>
 
 #include "src/base/bits.h"
 #include "src/globals.h"
 #include "src/signature.h"
 #include "src/zone.h"
 
 namespace v8 {
 namespace internal {
-namespace compiler {
 
 // Machine-level types and representations.
 // TODO(titzer): Use the real type system instead of MachineType.
 enum MachineType : uint16_t {
   // Representations.
   kRepBit = 1u << 0,
   kRepWord8 = 1u << 1,
   kRepWord16 = 1u << 2,
   kRepWord32 = 1u << 3,
   kRepWord64 = 1u << 4,
@@ skipping 88 matching lines @@
   return 1 << shift;
 }
 
 inline bool IsFloatingPoint(MachineType type) {
   MachineType rep = RepresentationOf(type);
   return rep == kRepFloat32 || rep == kRepFloat64;
 }
 
 typedef Signature<MachineType> MachineSignature;
 
-}  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
-#endif  // V8_COMPILER_MACHINE_TYPE_H_
+#endif  // V8_MACHINE_TYPE_H_