Tidy up several unbeseeming casts from pointer to intptr_t.

llvm-svn: 55779
diff --git a/llvm/lib/Transforms/Scalar/TailDuplication.cpp b/llvm/lib/Transforms/Scalar/TailDuplication.cpp
index d0998ab..568ec06 100644
--- a/llvm/lib/Transforms/Scalar/TailDuplication.cpp
+++ b/llvm/lib/Transforms/Scalar/TailDuplication.cpp
@@ -48,7 +48,7 @@
     bool runOnFunction(Function &F);
   public:
     static char ID; // Pass identification, replacement for typeid
-    TailDup() : FunctionPass((intptr_t)&ID) {}
+    TailDup() : FunctionPass(&ID) {}
 
   private:
     inline bool shouldEliminateUnconditionalBranch(TerminatorInst *, unsigned);