[clang] [HLSL] Diagnose dynamic indexing of struct arrays for resource access (PR #187132)

[Helena Kotas via cfe-commits]

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@@ -13699,6 +13699,9 @@ def err_hlsl_samplecmp_requires_float
 def err_hlsl_gathercmp_invalid_component
     : Error<"gatherCmp%select{Red|Green|Blue|Alpha}0 operations on the Vulkan target are not supported; only GatherCmp and GatherCmpRed are allowed">;
 
+def err_hlsl_resource_member_array_access_not_constant
+    : Error<"index for struct array inside cbuffer that contains resources must be a literal expression">;
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hekota wrote:

I'll update the error message to say  "constant integer expression".

https://github.com/llvm/llvm-project/pull/187132