Do not use typeinfo to identify pass in pass manager.

llvm-svn: 36632
diff --git a/llvm/lib/CodeGen/ELFWriter.h b/llvm/lib/CodeGen/ELFWriter.h
index e64a9c9..8b577a0 100644
--- a/llvm/lib/CodeGen/ELFWriter.h
+++ b/llvm/lib/CodeGen/ELFWriter.h
@@ -30,6 +30,8 @@
   class ELFWriter : public MachineFunctionPass {
     friend class ELFCodeEmitter;
   public:
+    static const int ID;
+
     MachineCodeEmitter &getMachineCodeEmitter() const {
       return *(MachineCodeEmitter*)MCE;
     }