Push DeclGroup much farther throughout the compiler. Now the various

productions (except the already broken ObjC cases like @class X,Y;) in 
the parser that can produce more than one Decl return a DeclGroup instead
of a Decl, etc.

This allows elimination of the Decl::NextDeclarator field, and exposes
various clients that should look at all decls in a group, but which were
only looking at one (such as the dumper, printer, etc).  These have been
fixed.

Still TODO:

1) there are some FIXME's in the code about potentially using
DeclGroup for better location info.
2) ParseObjCAtDirectives should return a DeclGroup due to @class etc.
3) I'm not sure what is going on with StmtIterator.cpp, or if it can
   be radically simplified now.
4) I put a truly horrible hack in ParseTemplate.cpp.

I plan to bring up #3/4 on the mailing list, but don't plan to tackle
#1/2 in the short term.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68002 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 2 deletions

diff --git a/lib/AST/DeclSerialization.cpp b/lib/AST/DeclSerialization.cpp
index 8e3ef08d2c..acaced2468 100644
--- a/lib/AST/DeclSerialization.cpp
+++ b/lib/AST/DeclSerialization.cpp
@@ -39,7 +39,6 @@ void Decl::Emit(Serializer& S) const {
   S.EmitInt(Access);
   S.EmitPtr(cast_or_null<Decl>(getDeclContext()));  // From Decl.
   S.EmitPtr(cast_or_null<Decl>(getLexicalDeclContext()));  // From Decl.
-  S.EmitPtr(NextDeclarator);
   if (const DeclContext *DC = dyn_cast<const DeclContext>(this))
     DC->EmitOutRec(S);
   
@@ -144,7 +143,6 @@ Decl* Decl::Create(Deserializer& D, ASTContext& C) {
     D.ReadPtr(MDC->SemanticDC, SemaDCPtrID);
     D.ReadPtr(MDC->LexicalDC, LexicalDCPtrID);
   }
-  D.ReadPtr(Dcl->NextDeclarator);
   if (DeclContext *DC = dyn_cast<DeclContext>(Dcl))
     DC->ReadOutRec(D, C);
   bool OwnsNext = D.ReadBool();