unique_ptrify SourceManager::createFileID

llvm-svn: 216715
diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
index 4cba26c..513a43c 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -700,7 +700,8 @@
     Kind = Input.isSystem() ? SrcMgr::C_System : SrcMgr::C_User;
 
   if (Input.isBuffer()) {
-    SourceMgr.setMainFileID(SourceMgr.createFileID(Input.getBuffer(), Kind));
+    SourceMgr.setMainFileID(SourceMgr.createFileID(
+        std::unique_ptr<llvm::MemoryBuffer>(Input.getBuffer()), Kind));
     assert(!SourceMgr.getMainFileID().isInvalid() &&
            "Couldn't establish MainFileID!");
     return true;