Add explicit "blind" client data to callback function (since we aren't using blocks).



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80673 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang-c/Index.h b/include/clang-c/Index.h
index de2b5d6..1b9ba4c 100644
--- a/include/clang-c/Index.h
+++ b/include/clang-c/Index.h
@@ -104,8 +104,11 @@
      clang_loadTranslationUnit(CXTranslationUnit, printObjCInterfaceNames);
    }
 */
-typedef void (*CXTranslationUnitIterator)(CXTranslationUnit, CXCursor);
-void clang_loadTranslationUnit(CXTranslationUnit, CXTranslationUnitIterator);
+typedef void *CXClientData;
+typedef void (*CXTranslationUnitIterator)(CXTranslationUnit, CXCursor, 
+                                          CXClientData);
+void clang_loadTranslationUnit(CXTranslationUnit, CXTranslationUnitIterator,
+                               CXClientData);
 
 /*
    Usage: clang_loadDeclaration(). Will load the declaration, issuing a