[OpenCL] Add support of cl_intel_device_side_avc_motion_estimation extension

Summary:
Documentation can be found at https://www.khronos.org/registry/OpenCL/extensions/intel/cl_intel_device_side_avc_motion_estimation.txt

Patch by Kristina Bessonova


Reviewers: Anastasia, yaxunl, shafik

Reviewed By: Anastasia

Subscribers: arphaman, sidorovd, AlexeySotkin, krisb, bader, asavonic, cfe-commits

Differential Revision: https://reviews.llvm.org/D51484

llvm-svn: 346392
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index 2d27bb4..e9e5bd2 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -6963,6 +6963,11 @@
       T = Context.SingletonId; \
       break;
 #include "clang/Basic/OpenCLImageTypes.def"
+#define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \
+    case PREDEF_TYPE_##Id##_ID: \
+      T = Context.Id##Ty; \
+      break;
+#include "clang/Basic/OpenCLExtensionTypes.def"
     case PREDEF_TYPE_SAMPLER_ID:
       T = Context.OCLSamplerTy;
       break;