Add OpenCL samplers as Clang builtin types and check sampler related restrictions.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174601 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/NSAPI.cpp b/lib/AST/NSAPI.cpp
index c8cf920..4c20235 100644
--- a/lib/AST/NSAPI.cpp
+++ b/lib/AST/NSAPI.cpp
@@ -351,6 +351,7 @@
   case BuiltinType::OCLImage2d:
   case BuiltinType::OCLImage2dArray:
   case BuiltinType::OCLImage3d:
+  case BuiltinType::OCLSampler:
   case BuiltinType::OCLEvent:
   case BuiltinType::BoundMember:
   case BuiltinType::Dependent: