Wire up redeclaration chains for Objective-C protocols, so that both
forward declarations and definitions of an Objective-C protocol are
represented within a single chain of ObjCProtocolDecls.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147412 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ASTImporter.cpp b/lib/AST/ASTImporter.cpp
index fe70494..9931961 100644
--- a/lib/AST/ASTImporter.cpp
+++ b/lib/AST/ASTImporter.cpp
@@ -3124,11 +3124,10 @@
       ToProto = ObjCProtocolDecl::Create(Importer.getToContext(), DC,
                                          Name.getAsIdentifierInfo(), Loc,
                                          Importer.Import(D->getAtStartLoc()),
+                                         /*PrevDecl=*/0,
                                          D->isInitiallyForwardDecl());
       ToProto->setLexicalDeclContext(LexicalDC);
       LexicalDC->addDeclInternal(ToProto);
-      if (D->isInitiallyForwardDecl() && D->hasDefinition())
-        ToProto->completedForwardDecl();
     }
     if (!ToProto->hasDefinition())
       ToProto->startDefinition();