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/LoopPass.cpp

@@ -21,7 +21,7 @@ using namespace llvm;
 // LPPassManager
 //
 
-const int LPPassManager::ID = 0;
+const char LPPassManager::ID = 0;
 /// LPPassManager manages FPPassManagers and CalLGraphSCCPasses.
 
 LPPassManager::LPPassManager(int Depth)