Use 'static const char' instead of 'static const int'.

Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652

llvm/lib/Analysis/AliasSetTracker.cpp

@@ -555,7 +555,7 @@ namespace {
   class VISIBILITY_HIDDEN AliasSetPrinter : public FunctionPass {
     AliasSetTracker *Tracker;
   public:
-    static const int ID; // Pass identifcation, replacement for typeid
+    static const char ID; // Pass identifcation, replacement for typeid
     AliasSetPrinter() : FunctionPass((intptr_t)&ID) {}
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
@@ -573,6 +573,6 @@ namespace {
       return false;
     }
   };
-  const int AliasSetPrinter::ID = 0;
+  const char AliasSetPrinter::ID = 0;
   RegisterPass<AliasSetPrinter> X("print-alias-sets", "Alias Set Printer");
 }