Introduce the core infrastructure needed to model a complete

redeclaration chain for Objective-C classes, including:
  - Using the first declaration as the canonical declaration.
  - Using the definition as the primary DeclContext
  - Making sure that all declarations have a pointer to the definition
  data, and the definition knows that it is the definition.
  - Serialization support for when a definition gets added to a
  declaration that comes from an AST file.

However, note that we're not taking advantage of much of this code
yet, because we're still re-using ObjCInterfaceDecls.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146667 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/Serialization/ASTWriterDecl.cpp b/lib/Serialization/ASTWriterDecl.cpp
index 9396958659..e641c101a1 100644
--- a/lib/Serialization/ASTWriterDecl.cpp
+++ b/lib/Serialization/ASTWriterDecl.cpp
@@ -447,6 +447,7 @@ void ASTDeclWriter::VisitObjCContainerDecl(ObjCContainerDecl *D) {
 }
 
 void ASTDeclWriter::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) {
+  VisitRedeclarable(D);
   VisitObjCContainerDecl(D);
   Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);