Add pretty-printing support for FieldRegions.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57724 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/MemRegion.cpp b/lib/Analysis/MemRegion.cpp
index 97a4fbc..d8efef2 100644
--- a/lib/Analysis/MemRegion.cpp
+++ b/lib/Analysis/MemRegion.cpp
@@ -88,6 +88,11 @@
   os << "$" << sym.getNumber();
 }
 
+void FieldRegion::print(llvm::raw_ostream& os) const {
+  superRegion->print(os);
+  os << "->" << getDecl()->getName();
+}
+
 //===----------------------------------------------------------------------===//
 // MemRegionManager methods.
 //===----------------------------------------------------------------------===//