Replace a isa+cast with a dyn_cast.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147401 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Decl.cpp b/lib/AST/Decl.cpp
index f9e57bc..842ce0f 100644
--- a/lib/AST/Decl.cpp
+++ b/lib/AST/Decl.cpp
@@ -297,9 +297,9 @@
for (const DeclContext *DC = D->getDeclContext();
!isa<TranslationUnitDecl>(DC);
DC = DC->getParent()) {
- if (!isa<NamespaceDecl>(DC)) continue;
- if (llvm::Optional<Visibility> Vis
- = cast<NamespaceDecl>(DC)->getExplicitVisibility()) {
+ const NamespaceDecl *ND = dyn_cast<NamespaceDecl>(DC);
+ if (!ND) continue;
+ if (llvm::Optional<Visibility> Vis = ND->getExplicitVisibility()) {
LV.setVisibility(*Vis, false);
F.ConsiderGlobalVisibility = false;
break;