Update to LLVM 3.5a.

Change-Id: Ifadecab779f128e62e430c2b4f6ddd84953ed617
diff --git a/lib/Bitcode/Writer/BitcodeWriterPass.cpp b/lib/Bitcode/Writer/BitcodeWriterPass.cpp
index e5e76e2..4167f6d 100644
--- a/lib/Bitcode/Writer/BitcodeWriterPass.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriterPass.cpp
@@ -1,4 +1,4 @@
-//===--- Bitcode/Writer/BitcodeWriterPass.cpp - Bitcode Writer ------------===//
+//===- BitcodeWriterPass.cpp - Bitcode writing pass -----------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -11,10 +11,18 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/Bitcode/BitcodeWriterPass.h"
 #include "llvm/Bitcode/ReaderWriter.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/PassManager.h"
 #include "llvm/Pass.h"
 using namespace llvm;
 
+PreservedAnalyses BitcodeWriterPass::run(Module *M) {
+  WriteBitcodeToFile(M, OS);
+  return PreservedAnalyses::all();
+}
+
 namespace {
   class WriteBitcodePass : public ModulePass {
     raw_ostream &OS; // raw_ostream to print on
@@ -23,9 +31,9 @@
     explicit WriteBitcodePass(raw_ostream &o)
       : ModulePass(ID), OS(o) {}
 
-    const char *getPassName() const { return "Bitcode Writer"; }
+    const char *getPassName() const override { return "Bitcode Writer"; }
 
-    bool runOnModule(Module &M) {
+    bool runOnModule(Module &M) override {
       WriteBitcodeToFile(&M, OS);
       return false;
     }
@@ -34,8 +42,6 @@
 
 char WriteBitcodePass::ID = 0;
 
-/// createBitcodeWriterPass - Create and return a pass that writes the module
-/// to the specified ostream.
 ModulePass *llvm::createBitcodeWriterPass(raw_ostream &Str) {
   return new WriteBitcodePass(Str);
 }