[clang] [HLSL] Implement output parameter (PR #101083)

[Damyan Pepper via cfe-commits]

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@@ -4613,14 +4613,13 @@ def HLSLGroupSharedAddressSpace : TypeAttr {
   let Documentation = [HLSLGroupSharedAddressSpaceDocs];
 }
 
-def HLSLParamModifier : TypeAttr {
+def HLSLParamModifier : ParameterABIAttr {
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damyanp wrote:

as an aside: what's the plan for / state of "uniform".  It's mentioned in the docs at least.

https://github.com/llvm/llvm-project/pull/101083