lower spirv ray query type to opaque debug type (#7139)

Pull request for Issue
[#7033](#7033).
It is still lacking a test though. If you can give me a quick pointer to
a test directory where I can reformulate my reproducer as a test, I will
add it as well.

---------

Co-authored-by: Christian Reinbold <[email protected]>
Co-authored-by: Steven Perron <[email protected]>

Author: 3 people

tools/clang/lib/SPIRV/DebugTypeVisitor.cpp

@@ -323,6 +323,7 @@ SpirvDebugType *DebugTypeVisitor::lowerToDebugType(const SpirvType *spirvType) {
   }
   case SpirvType::TK_Image:
   case SpirvType::TK_Sampler:
+  case SpirvType::TK_RayQueryKHR:
   case SpirvType::TK_Struct: {
     debugType = lowerToDebugTypeComposite(spirvType);
     break;

tools/clang/test/CodeGenSPIRV/rayquery_debug.hlsl

@@ -0,0 +1,11 @@
+// RUN: %dxc -T cs_6_5 -E main -fspv-target-env=vulkan1.2 -fspv-debug=vulkan-with-source -spirv %s | FileCheck %s
+
+// CHECK: [[rayQueryKHR_name_id:%[0-9]+]] = OpString "@rayQueryKHR"
+// CHECK: [[rayQueryKHR_linkage_name_id:%[0-9]+]] = OpString "rayQueryKHR"
+// CHECK: [[debug_info_none_id:%[0-9]+]] = OpExtInst %void [[_:%[0-9]+]] DebugInfoNone
+// CHECK: [[_:%[0-9]+]] = OpExtInst %void [[_:%[0-9]+]] DebugTypeComposite [[rayQueryKHR_name_id]] %uint_0 [[_:%[0-9]+]] %uint_0 %uint_0 [[_:%[0-9]+]] [[rayQueryKHR_linkage_name_id]] [[debug_info_none_id]] %uint_3{{$}}
+
+[numthreads(64, 1, 1)]
+void main() {
+    RayQuery<RAY_FLAG_NONE> q;
+}