eliminate a bunch of dynamic_cast's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94155 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/IPA/CallGraphSCCPass.cpp

@@ -57,6 +57,9 @@ public:
     return "CallGraph Pass Manager";
   }
 
+  virtual PMDataManager *getAsPMDataManager() { return this; }
+  virtual Pass *getAsPass() { return this; }
+
   // Print passes managed by this manager
   void dumpPassStructure(unsigned Offset) {
     errs().indent(Offset*2) << "Call Graph SCC Pass Manager\n";