Update clang to 84175.

1 files changed, 8 insertions, 4 deletions

diff --git a/lib/Sema/SemaTemplateInstantiateDecl.cpp b/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 33fa288..060cc55 100644
--- a/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -246,8 +246,10 @@ Decl *TemplateDeclInstantiator::VisitFieldDecl(FieldDecl *D) {
                                             D->getTypeSpecStartLoc(),
                                             D->getAccess(),
                                             0);
-  if (!Field)
+  if (!Field) {
+    cast<Decl>(Owner)->setInvalidDecl();
     return 0;
+  }
 
   if (Invalid)
     Field->setInvalidDecl();
@@ -1189,14 +1191,14 @@ void Sema::InstantiateStaticDataMemberDefinition(
   }
 
   // Never instantiate an explicit specialization.
-  if (Def->getTemplateSpecializationKind() == TSK_ExplicitSpecialization)
+  if (Var->getTemplateSpecializationKind() == TSK_ExplicitSpecialization)
     return;
   
   // C++0x [temp.explicit]p9:
   //   Except for inline functions, other explicit instantiation declarations
   //   have the effect of suppressing the implicit instantiation of the entity
   //   to which they refer.
-  if (Def->getTemplateSpecializationKind() 
+  if (Var->getTemplateSpecializationKind() 
         == TSK_ExplicitInstantiationDeclaration)
     return;
 
@@ -1216,12 +1218,14 @@ void Sema::InstantiateStaticDataMemberDefinition(
   DeclContext *PreviousContext = CurContext;
   CurContext = Var->getDeclContext();
 
+  VarDecl *OldVar = Var;
   Var = cast_or_null<VarDecl>(SubstDecl(Def, Var->getDeclContext(),
                                           getTemplateInstantiationArgs(Var)));
-
   CurContext = PreviousContext;
 
   if (Var) {
+    Var->setPreviousDeclaration(OldVar);
+    Var->setTemplateSpecializationKind(OldVar->getTemplateSpecializationKind());
     DeclGroupRef DG(Var);
     Consumer.HandleTopLevelDecl(DG);
   }