Change CallGraph print to show the fully qualified name

CallGraph previously would just show the normal name of a function,
which gets really confusing when using it on large C++ projects.  This
patch switches the printName call to a printQualifiedName, so that the
namespaces are included.

Change-Id: Ie086d863f6b2251be92109ea1b0946825b28b49a
llvm-svn: 348950
diff --git a/clang/lib/Analysis/CallGraph.cpp b/clang/lib/Analysis/CallGraph.cpp
index bac0068..66a6f1a 100644
--- a/clang/lib/Analysis/CallGraph.cpp
+++ b/clang/lib/Analysis/CallGraph.cpp
@@ -212,7 +212,7 @@
 
 void CallGraphNode::print(raw_ostream &os) const {
   if (const NamedDecl *ND = dyn_cast_or_null<NamedDecl>(FD))
-      return ND->printName(os);
+      return ND->printQualifiedName(os);
   os << "< >";
 }