NFC: Clean up construction of IntrusiveRefCntPtr from raw pointers for llvm::vfs::FileSystem. (#151407)

This switches to `makeIntrusiveRefCnt<FileSystem>` where creating a new
object, and to passing/returning by `IntrusiveRefCntPtr<FileSystem>`
instead of `FileSystem*` or `FileSystem&`, when dealing with existing
objects.

Part of cleanup #151026.

1 files changed, 2 insertions, 2 deletions

diff --git a/clang/lib/CodeGen/CodeGenAction.cpp b/clang/lib/CodeGen/CodeGenAction.cpp
index 2c0767f..dc54c97 100644
--- a/clang/lib/CodeGen/CodeGenAction.cpp
+++ b/clang/lib/CodeGen/CodeGenAction.cpp
@@ -978,7 +978,7 @@ CodeGenAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
         CI.getPreprocessor());
 
   std::unique_ptr<BackendConsumer> Result(new BackendConsumer(
-      CI, BA, &CI.getVirtualFileSystem(), *VMContext, std::move(LinkModules),
+      CI, BA, CI.getVirtualFileSystemPtr(), *VMContext, std::move(LinkModules),
       InFile, std::move(OS), CoverageInfo));
   BEConsumer = Result.get();
 
@@ -1156,7 +1156,7 @@ void CodeGenAction::ExecuteAction() {
 
   // Set clang diagnostic handler. To do this we need to create a fake
   // BackendConsumer.
-  BackendConsumer Result(CI, BA, &CI.getVirtualFileSystem(), *VMContext,
+  BackendConsumer Result(CI, BA, CI.getVirtualFileSystemPtr(), *VMContext,
                          std::move(LinkModules), "", nullptr, nullptr,
                          TheModule.get());