Add SymbolRef::print() and have SymbolicRegion::print() use this method instead of calling SymbolRef::getNumber().

llvm-svn: 60578
diff --git a/clang/lib/Analysis/SymbolManager.cpp b/clang/lib/Analysis/SymbolManager.cpp
index 0132029..1c2814a 100644
--- a/clang/lib/Analysis/SymbolManager.cpp
+++ b/clang/lib/Analysis/SymbolManager.cpp
@@ -13,9 +13,14 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/Analysis/PathSensitive/SymbolManager.h"
+#include "llvm/Support/raw_ostream.h"
 
 using namespace clang;
 
+void SymbolRef::print(llvm::raw_ostream& os) const {
+  os << getNumber();
+}
+
 SymbolRef SymbolManager::getSymbol(VarDecl* D) {
 
   assert (isa<ParmVarDecl>(D) || isa<ImplicitParamDecl>(D) ||