PNaCl: Add ExpandVarArgs pass for expanding out variable-args function calls

include/llvm/Transforms/NaCl.h

Index: include/llvm/Transforms/NaCl.h
diff --git a/include/llvm/Transforms/NaCl.h b/include/llvm/Transforms/NaCl.h
index 686b45ff747ee85f70ee221f41cb877592872643..6494200f6dd37b50d6bb20c7a701b06382924d14 100644
--- a/include/llvm/Transforms/NaCl.h
+++ b/include/llvm/Transforms/NaCl.h
@@ -19,6 +19,7 @@ FunctionPass *createExpandConstantExprPass();
 ModulePass *createExpandCtorsPass();
 ModulePass *createExpandTlsPass();
 ModulePass *createExpandTlsConstantExprPass();
+ModulePass *createExpandVarArgsPass();
 
 }