[clang] [llvm] [HLSL] Implement Texture2D type and Sample method in Clang (PR #177240)

[Helena Kotas via cfe-commits]

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@@ -31,6 +31,14 @@ enum class ResourceClass : uint8_t {
   LastEntry = Sampler,
 };
 
+enum class ResourceDimension : uint8_t {
+  DimensionUnknown = 0,
+  Dimension1D,
+  Dimension2D,
+  Dimension3D,
+  DimensionCube,
+};
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hekota wrote:

I like the `ResourceDimension::Dim1D` style, and it is a nice that it matches SPIR-V naming.

https://github.com/llvm/llvm-project/pull/177240