add a dump() method on callgraph.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80524 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/IPA/CallGraph.cpp b/lib/Analysis/IPA/CallGraph.cpp
index f03e4b2..453f4c2 100644
--- a/lib/Analysis/IPA/CallGraph.cpp
+++ b/lib/Analysis/IPA/CallGraph.cpp
@@ -181,6 +181,9 @@
   for (CallGraph::const_iterator I = begin(), E = end(); I != E; ++I)
     I->second->print(OS);
 }
+void CallGraph::dump() const {
+  print(errs(), 0);
+}
 
 //===----------------------------------------------------------------------===//
 // Implementations of public modification methods