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Replace a isa+cast with a dyn_cast. 

llvm-svn: 147401
This commit is contained in:
Rafael Espindola 2012-01-01 17:48:19 +00:00
parent d3df940169
commit 09593a322a
1 changed files with 3 additions and 3 deletions
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6
clang/lib/AST/Decl.cpp
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@ -297,9 +297,9 @@ static LinkageInfo getLVForNamespaceScopeDecl(const NamedDecl *D, LVFlags F) {
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;