Add pretty printing to StringRegion.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58985 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/MemRegion.cpp b/lib/Analysis/MemRegion.cpp
index 85ad3d8..f6bf449 100644
--- a/lib/Analysis/MemRegion.cpp
+++ b/lib/Analysis/MemRegion.cpp
@@ -151,6 +151,10 @@
   os << "{ " << (void*) CL <<  " }";
 }
 
+void StringRegion::print(llvm::raw_ostream& os) const {
+  os << "\"" << Str->getStrData() << "\"";
+}
+
 //===----------------------------------------------------------------------===//
 // MemRegionManager methods.
 //===----------------------------------------------------------------------===//