Tidy up several unbeseeming casts from pointer to intptr_t.

llvm-svn: 55779
diff --git a/llvm/lib/CodeGen/MachineSink.cpp b/llvm/lib/CodeGen/MachineSink.cpp
index b4e72fe..0f608d6 100644
--- a/llvm/lib/CodeGen/MachineSink.cpp
+++ b/llvm/lib/CodeGen/MachineSink.cpp
@@ -36,7 +36,7 @@
 
   public:
     static char ID; // Pass identification
-    MachineSinking() : MachineFunctionPass((intptr_t)&ID) {}
+    MachineSinking() : MachineFunctionPass(&ID) {}
     
     virtual bool runOnMachineFunction(MachineFunction &MF);