Roll Clang 214024:216630 (+216684) and switch to CMake (try 2)

tools/clang/plugins/FindBadConstructsAction.h

 // Copyright (c) 2012 The Chromium 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 TOOLS_CLANG_PLUGINS_FINDBADCONSTRUCTIONS_ACTION_H_
 #define TOOLS_CLANG_PLUGINS_FINDBADCONSTRUCTIONS_ACTION_H_
 
 #include "clang/Frontend/FrontendAction.h"
 
 #include "Options.h"
 
 namespace chrome_checker {
 
 class FindBadConstructsAction : public clang::PluginASTAction {
  public:
   FindBadConstructsAction();
 
  protected:
   // Overridden from PluginASTAction:
-  virtual clang::ASTConsumer* CreateASTConsumer(
+  virtual std::unique_ptr<clang::ASTConsumer> CreateASTConsumer(
       clang::CompilerInstance& instance,
       llvm::StringRef ref);
   virtual bool ParseArgs(const clang::CompilerInstance& instance,
                          const std::vector<std::string>& args);
 
  private:
   Options options_;
 };
 
 }  // namespace chrome_checker
 
 #endif  // TOOLS_CLANG_PLUGINS_FINDBADCONSTRUCTIONS_ACTION_H_