[index] Nested class declarations should be annotated with the

"specializationOf" relation if they pseudo-override a type in the base template

This commit fixes an issue where Xcode's renaming engine couldn't find the
reference to the second occurrence of "InnerClass" in this example:

template<typename T> struct Ts { template<typename U> struct InnerClass { }; };

template<> struct Ts<int> {
template<typename U> struct InnerClass; // This occurrence wasn't renamed
};

rdar://31884960

Differential Revision: https://reviews.llvm.org/D34392

llvm-svn: 305911

1 files changed, 3 insertions, 1 deletions

diff --git a/clang/lib/Index/IndexDecl.cpp b/clang/lib/Index/IndexDecl.cpp
index 2162c039c48..2b0368131bb 100644
--- a/clang/lib/Index/IndexDecl.cpp
+++ b/clang/lib/Index/IndexDecl.cpp
@@ -351,9 +351,11 @@ public:
         IndexCtx.indexTagDecl(D, Relations);
       } else {
         auto *Parent = dyn_cast<NamedDecl>(D->getDeclContext());
+        SmallVector<SymbolRelation, 1> Relations;
+        gatherTemplatePseudoOverrides(D, Relations);
         return IndexCtx.handleReference(D, D->getLocation(), Parent,
                                         D->getLexicalDeclContext(),
-                                        SymbolRoleSet());
+                                        SymbolRoleSet(), Relations);
       }
     }
     return true;