Disallow abstract types where appropriate.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67476 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.h b/lib/Sema/Sema.h
index 4082440..64cc088 100644
--- a/lib/Sema/Sema.h
+++ b/lib/Sema/Sema.h
@@ -151,6 +151,13 @@
   /// FieldCollector - Collects CXXFieldDecls during parsing of C++ classes.
   llvm::OwningPtr<CXXFieldCollector> FieldCollector;
 
+  typedef llvm::SmallPtrSet<const CXXRecordDecl*, 8> RecordDeclSetTy;
+  
+  /// PureVirtualClassDiagSet - a set of class declarations which we have 
+  /// emitted a list of pure virtual functions. Used to prevent emitting the
+  /// same list more than once.
+  llvm::OwningPtr<RecordDeclSetTy> PureVirtualClassDiagSet;
+  
   /// \brief A mapping from external names to the most recent
   /// locally-scoped external declaration with that name.
   ///
@@ -1627,6 +1634,8 @@
                                     SourceLocation Loc, SourceRange Range);
   std::string getAmbiguousPathsDisplayString(BasePaths &Paths);
 
+  bool RequireNonAbstractType(SourceLocation Loc, QualType T, unsigned SelID);
+
   //===--------------------------------------------------------------------===//
   // C++ Overloaded Operators [C++ 13.5]
   //