Create ast/ and parsing/ subdirectories and move appropriate files

src/interpreter/interpreter.h

 // 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.
 
 #ifndef V8_INTERPRETER_INTERPRETER_H_
 #define V8_INTERPRETER_INTERPRETER_H_
 
 // Clients of this interface shouldn't depend on lots of interpreter internals.
 // Do not include anything from src/interpreter other than
 // src/interpreter/bytecodes.h here!
 #include "src/base/macros.h"
 #include "src/builtins.h"
 #include "src/interpreter/bytecodes.h"
+#include "src/parsing/token.h"
 #include "src/runtime/runtime.h"
-#include "src/token.h"
 
 namespace v8 {
 namespace internal {
 
 class Isolate;
 class Callable;
 class CompilationInfo;
 
 namespace compiler {
 class InterpreterAssembler;
@@ skipping 74 matching lines @@
   Isolate* isolate_;
 
   DISALLOW_COPY_AND_ASSIGN(Interpreter);
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_INTERPRETER_H_