move ImplementationClassInfo out of ASTContext into Sema.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42714 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Sema/Sema.h b/Sema/Sema.h
index 6d38e62..c4ad75b 100644
--- a/Sema/Sema.h
+++ b/Sema/Sema.h
@@ -16,9 +16,9 @@
#define LLVM_CLANG_AST_SEMA_H
#include "clang/Parse/Action.h"
-#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/DenseSet.h"
+#include "llvm/ADT/SmallPtrSet.h"
#include <vector>
#include <string>
@@ -83,6 +83,10 @@
/// This is only necessary for issuing pretty diagnostics.
llvm::SmallVector<TypedefDecl*, 24> OCUVectorDecls;
+ /// ObjcImplementations - Keep track of all of the classes with
+ /// @implementation's, so that we can emit errors on duplicates.
+ llvm::SmallPtrSet<IdentifierInfo*, 8> ObjcImplementations;
+
// Enum values used by KnownFunctionIDs (see below).
enum {
id_printf,