Don't use PassInfo* as a type identifier for passes.  Instead, use the address of the static
ID member as the sole unique type identifier.  Clean up APIs related to this change.

llvm-svn: 110396
diff --git a/llvm/lib/Transforms/IPO/ConstantMerge.cpp b/llvm/lib/Transforms/IPO/ConstantMerge.cpp
index 5c6bc86..75282fa 100644
--- a/llvm/lib/Transforms/IPO/ConstantMerge.cpp
+++ b/llvm/lib/Transforms/IPO/ConstantMerge.cpp
@@ -31,7 +31,7 @@
 namespace {
   struct ConstantMerge : public ModulePass {
     static char ID; // Pass identification, replacement for typeid
-    ConstantMerge() : ModulePass(&ID) {}
+    ConstantMerge() : ModulePass(ID) {}
 
     // run - For this pass, process all of the globals in the module,
     // eliminating duplicate constants.