libAnalysis: Add a case for TypeAliasDecl in CFGRecStmtDeclVisitor.

Neither of the current clients of CFGRecStmtDeclVisitor are doing
anything with typedefs, so I assume type aliases (C++11 "using")
can be safely ignored. This was causing assertion failures in
the analyzer.

<rdar://problem/13228440>

llvm-svn: 175335

1 files changed, 9 insertions, 2 deletions

diff --git a/clang/test/Analysis/dead-stores.cpp b/clang/test/Analysis/dead-stores.cpp
index 86d84f0fbfa..e1a034b1d02 100644
--- a/clang/test/Analysis/dead-stores.cpp
+++ b/clang/test/Analysis/dead-stores.cpp
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -analyze -analyzer-checker=deadcode.DeadStores -verify -Wno-unreachable-code %s
-// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -analyze -analyzer-store=region -analyzer-constraints=range -analyzer-checker=deadcode.DeadStores -verify -Wno-unreachable-code %s
+// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -std=c++11 -analyze -analyzer-checker=deadcode.DeadStores -verify -Wno-unreachable-code %s
+// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -std=c++11 -analyze -analyzer-store=region -analyzer-constraints=range -analyzer-checker=deadcode.DeadStores -verify -Wno-unreachable-code %s
 
 //===----------------------------------------------------------------------===//
 // Basic dead store checking (but in C++ mode).
@@ -149,3 +149,10 @@ void test_6b() {
   }
   catch (void *) {}
 }
+
+
+void testCXX11Using() {
+  using Int = int;
+  Int value;
+  value = 1; // expected-warning {{never read}}
+}