Revert of Roll Clang 214024:216630 (+216684) and switch to CMake

tools/clang/plugins/FindBadConstructsAction.cpp

Index: tools/clang/plugins/FindBadConstructsAction.cpp
diff --git a/tools/clang/plugins/FindBadConstructsAction.cpp b/tools/clang/plugins/FindBadConstructsAction.cpp
index be7a9506a78cd27737bade5303f4c727511d0ab8..838590d7d389ccf631fc0442ef6e2acceb30cdaa 100644
--- a/tools/clang/plugins/FindBadConstructsAction.cpp
+++ b/tools/clang/plugins/FindBadConstructsAction.cpp
@@ -15,10 +15,10 @@
 FindBadConstructsAction::FindBadConstructsAction() {
 }
 
-std::unique_ptr<ASTConsumer> FindBadConstructsAction::CreateASTConsumer(
+ASTConsumer* FindBadConstructsAction::CreateASTConsumer(
     CompilerInstance& instance,
     llvm::StringRef ref) {
-  return llvm::make_unique<FindBadConstructsConsumer>(instance, options_);
+  return new FindBadConstructsConsumer(instance, options_);
 }
 
 bool FindBadConstructsAction::ParseArgs(const CompilerInstance& instance,