PNaCl: Add ReplacePtrsWithInts pass for stripping out pointer types

tools/opt/opt.cpp

Index: tools/opt/opt.cpp
diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp
index 15c3eac3662d851ce33c8216b8600d991e39fa3c..fbacdfc63de296954e9c6f93301de355cdbe1767 100644
--- a/tools/opt/opt.cpp
+++ b/tools/opt/opt.cpp
@@ -590,6 +590,7 @@ int main(int argc, char **argv) {
   initializePNaClABIVerifyFunctionsPass(Registry);
   initializePNaClABIVerifyModulePass(Registry);
   initializePromoteIntegersPass(Registry);
+  initializeReplacePtrsWithIntsPass(Registry);
   initializeResolveAliasesPass(Registry);
   initializeRewritePNaClLibraryCallsPass(Registry);
   initializeStripMetadataPass(Registry);