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/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp
index 1213084..a00d406 100644
--- a/lib/Serialization/ASTReader.cpp
+++ b/lib/Serialization/ASTReader.cpp
@@ -4903,6 +4903,7 @@
     case PREDEF_TYPE_IMAGE2D_ID:    T = Context.OCLImage2dTy;       break;
     case PREDEF_TYPE_IMAGE2D_ARR_ID: T = Context.OCLImage2dArrayTy; break;
     case PREDEF_TYPE_IMAGE3D_ID:    T = Context.OCLImage3dTy;       break;
+    case PREDEF_TYPE_SAMPLER_ID:    T = Context.OCLSamplerTy;       break;
     case PREDEF_TYPE_EVENT_ID:      T = Context.OCLEventTy;         break;
     case PREDEF_TYPE_AUTO_DEDUCT:   T = Context.getAutoDeductType(); break;