Implement C++0x nullptr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71405 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.h b/lib/Sema/Sema.h
index 3054028..20d1edb 100644
--- a/lib/Sema/Sema.h
+++ b/lib/Sema/Sema.h
@@ -1534,6 +1534,9 @@
   virtual OwningExprResult ActOnCXXBoolLiteral(SourceLocation OpLoc,
                                                tok::TokenKind Kind);
 
+  /// ActOnCXXNullPtrLiteral - Parse 'nullptr'.
+  virtual OwningExprResult ActOnCXXNullPtrLiteral(SourceLocation Loc);
+
   //// ActOnCXXThrow -  Parse throw expressions.
   virtual OwningExprResult ActOnCXXThrow(SourceLocation OpLoc,
                                          ExprArg expr);