[sema] Revise `getCurrentMangleNumberContext` interface. NFC.

- Prefer returning mulitple values using a tuple instead of
  additional pointers/references.

llvm-svn: 374274

1 files changed, 4 insertions, 3 deletions

diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 23d3171505a..8261ede5826 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -14043,10 +14043,11 @@ void Sema::ActOnBlockStart(SourceLocation CaretLoc, Scope *CurScope) {
   BlockDecl *Block = BlockDecl::Create(Context, CurContext, CaretLoc);
 
   if (LangOpts.CPlusPlus) {
+    MangleNumberingContext *MCtx;
     Decl *ManglingContextDecl;
-    if (MangleNumberingContext *MCtx =
-            getCurrentMangleNumberContext(Block->getDeclContext(),
-                                          ManglingContextDecl)) {
+    std::tie(MCtx, ManglingContextDecl) =
+        getCurrentMangleNumberContext(Block->getDeclContext());
+    if (MCtx) {
       unsigned ManglingNumber = MCtx->getManglingNumber(Block);
       Block->setBlockMangling(ManglingNumber, ManglingContextDecl);
     }