Implement OpenCL event_t as Clang builtin type, including event_t related OpenCL restrictions (OpenCL 1.2 spec 6.9)


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172973 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CIndexUSRs.cpp b/tools/libclang/CIndexUSRs.cpp
index 1cfb6a4..5942b42 100644
--- a/tools/libclang/CIndexUSRs.cpp
+++ b/tools/libclang/CIndexUSRs.cpp
@@ -593,6 +593,7 @@
         case BuiltinType::OCLImage2d:
         case BuiltinType::OCLImage2dArray:
         case BuiltinType::OCLImage3d:
+        case BuiltinType::OCLEvent:
           IgnoreResults = true;
           return;
         case BuiltinType::ObjCId: