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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/IPO/PruneEH.cpp

@@ -35,7 +35,7 @@ STATISTIC(NumUnreach, "Number of noreturn calls optimized");
 
 namespace {
   struct VISIBILITY_HIDDEN PruneEH : public CallGraphSCCPass {
-    static const int ID; // Pass identifcation, replacement for typeid
+    static const char ID; // Pass identifcation, replacement for typeid
     PruneEH() : CallGraphSCCPass((intptr_t)&ID) {}
 
     /// DoesNotUnwind - This set contains all of the functions which we have
@@ -53,7 +53,7 @@ namespace {
     void DeleteBasicBlock(BasicBlock *BB);
   };
 
-  const int PruneEH::ID = 0;
+  const char PruneEH::ID = 0;
   RegisterPass<PruneEH> X("prune-eh", "Remove unused exception handling info");
 }