Tidy up several unbeseeming casts from pointer to intptr_t.

llvm-svn: 55779
diff --git a/llvm/lib/CodeGen/GCStrategy.cpp b/llvm/lib/CodeGen/GCStrategy.cpp
index d46b525..517b3a7 100644
--- a/llvm/lib/CodeGen/GCStrategy.cpp
+++ b/llvm/lib/CodeGen/GCStrategy.cpp
@@ -127,7 +127,7 @@
 char LowerIntrinsics::ID = 0;
 
 LowerIntrinsics::LowerIntrinsics()
-  : FunctionPass((intptr_t)&ID) {}
+  : FunctionPass(&ID) {}
 
 const char *LowerIntrinsics::getPassName() const {
   return "Lower Garbage Collection Instructions";