[clang] [Clang][SPIRV] Add __spirv_event_t builtin type (PR #207077)

[Tom Honermann via cfe-commits]

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@@ -2438,6 +2445,12 @@ TypeInfo ASTContext::getTypeInfoImpl(const Type *T) const {
       Width = Target->getPointerWidth(LangAS::Default);
       Align = Target->getPointerAlign(LangAS::Default);
       break;
+#define SPIRV_TYPE(Name, Id, SingletonId)                                      \
+  case BuiltinType::Id:                                                        \
+    Width = Target->getPointerWidth(LangAS::Default);                          \
+    Align = Target->getPointerAlign(LangAS::Default);                          \
+    break;
+#include "clang/Basic/SPIRVTypes.def"
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tahonermann wrote:

It looks like `encodeTypeForFunctionPointerAuth()` around line 3580 should be updated as well, perhaps with just an `llvm_unreachable()` call.

https://github.com/llvm/llvm-project/pull/207077