[AST] Convert MangleNumberingContext to a unique_ptr.

Summary: It doesn't need to be refcounted anymore, either.

Reviewers: timshen

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D25420

llvm-svn: 283768

1 files changed, 3 insertions, 2 deletions

diff --git a/clang/lib/AST/MicrosoftCXXABI.cpp b/clang/lib/AST/MicrosoftCXXABI.cpp
index 3ae04538d626..bb59fba5eec2 100644
--- a/clang/lib/AST/MicrosoftCXXABI.cpp
+++ b/clang/lib/AST/MicrosoftCXXABI.cpp
@@ -143,8 +143,9 @@ public:
         const_cast<TagDecl *>(TD->getCanonicalDecl()));
   }
 
-  MangleNumberingContext *createMangleNumberingContext() const override {
-    return new MicrosoftNumberingContext();
+  std::unique_ptr<MangleNumberingContext>
+  createMangleNumberingContext() const override {
+    return llvm::make_unique<MicrosoftNumberingContext>();
   }
 };
 }