Create ast/ and parsing/ subdirectories and move appropriate files

src/parsing/pattern-rewriter.cc

 // 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.
 
-#include "src/ast.h"
+#include "src/ast/ast.h"
 #include "src/messages.h"
-#include "src/parameter-initializer-rewriter.h"
-#include "src/parser.h"
+#include "src/parsing/parameter-initializer-rewriter.h"
+#include "src/parsing/parser.h"
 
 namespace v8 {
 
 namespace internal {
 
 
 void Parser::PatternRewriter::DeclareAndInitializeVariables(
     Block* block, const DeclarationDescriptor* declaration_descriptor,
     const DeclarationParsingResult::Declaration* declaration,
     ZoneList<const AstRawString*>* names, bool* ok) {
@@ skipping 407 matching lines @@
 NOT_A_PATTERN(TryFinallyStatement)
 NOT_A_PATTERN(UnaryOperation)
 NOT_A_PATTERN(VariableDeclaration)
 NOT_A_PATTERN(WhileStatement)
 NOT_A_PATTERN(WithStatement)
 NOT_A_PATTERN(Yield)
 
 #undef NOT_A_PATTERN
 }  // namespace internal
 }  // namespace v8