Handle 'UsingDirective' in CFGRecStmtDeclVisitor.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125491 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h

@@ -66,6 +66,7 @@ public:
         DISPATCH_CASE(Record)    // FIXME: Refine.  VisitStructDecl?
         DISPATCH_CASE(CXXRecord)
         DISPATCH_CASE(Enum)
+        DISPATCH_CASE(UsingDirective)
       default:
         assert(false && "Subtype of ScopedDecl not handled.");
     }
@@ -85,6 +86,7 @@ public:
   DEFAULT_DISPATCH(ObjCMethod)
   DEFAULT_DISPATCH(ObjCProtocol)
   DEFAULT_DISPATCH(ObjCCategory)
+  DEFAULT_DISPATCH(UsingDirective)
 
   void VisitCXXRecordDecl(CXXRecordDecl *D) {
     static_cast<ImplClass*>(this)->VisitRecordDecl(D);

test/Analysis/misc-ps-region-store.cpp

@@ -225,3 +225,18 @@ void Foo3<T>::Bar() {
   Baz();
   value_();
 }
+
+//===---------------------------------------------------------------------===//
+// Handle misc. C++ constructs.
+//===---------------------------------------------------------------------===//
+
+namespace fum {
+  int i = 3;
+};
+
+void test_namespace() {
+  // Previously triggered a crash.
+  using namespace fum;
+  int x = i;
+}
+