PNaCl: Add ReplacePtrsWithInts pass for stripping out pointer types

lib/Transforms/NaCl/ExpandVarArgs.cpp

Index: lib/Transforms/NaCl/ExpandVarArgs.cpp
diff --git a/lib/Transforms/NaCl/ExpandVarArgs.cpp b/lib/Transforms/NaCl/ExpandVarArgs.cpp
index 1932107b4c1f667708d42aec3ca67c3230b38396..3ea093f8f893bcd687cf2bab4626910ce8875e0b 100644
--- a/lib/Transforms/NaCl/ExpandVarArgs.cpp
+++ b/lib/Transforms/NaCl/ExpandVarArgs.cpp
@@ -65,11 +65,6 @@ INITIALIZE_PASS(ExpandVarArgs, "expand-varargs",
                 "Expand out variable argument function definitions and calls",
                 false, false)
 
-static Instruction *CopyDebug(Instruction *NewInst, Instruction *Original) {
-  NewInst->setDebugLoc(Original->getDebugLoc());
-  return NewInst;
-}
-
 static void ExpandVarArgFunc(Function *Func) {
   Type *PtrType = Type::getInt8PtrTy(Func->getContext());