Implement pack expansions whose pattern is a base-specifier.

llvm-svn: 122782
diff --git a/clang/lib/AST/DeclCXX.cpp b/clang/lib/AST/DeclCXX.cpp
index 35c8997..3304ad9 100644
--- a/clang/lib/AST/DeclCXX.cpp
+++ b/clang/lib/AST/DeclCXX.cpp
@@ -196,7 +196,8 @@
     data().getVBases()[I] =
       CXXBaseSpecifier(VBaseClassDecl->getSourceRange(), true,
                        VBaseClassDecl->getTagKind() == TTK_Class,
-                       VBases[I]->getAccessSpecifier(), VBaseTypeInfo);
+                       VBases[I]->getAccessSpecifier(), VBaseTypeInfo,
+                       SourceLocation());
   }
 }