[clang] [HLSL] Implement `SpirvType` and `SpirvOpaqueType` (PR #134034)

[Cassandra Beckley via cfe-commits]

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@@ -6330,6 +6331,140 @@ class HLSLAttributedResourceType : public Type, public llvm::FoldingSetNode {
   findHandleTypeOnResource(const Type *RT);
 };
 
+/// Instances of this class represent operands to a SPIR-V type instruction.
+class SpirvOperand {
+public:
+  enum SpirvOperandKind : unsigned char {
+    kInvalid,    ///< Uninitialized.
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cassiebeckley wrote:

Done.

https://github.com/llvm/llvm-project/pull/134034