shader: fold reads through empty scalar descriptor tables

Co-authored-by: fxpw <fxpw@outlook.com>

src/graphics/shader/recompiler/ir/passes/ResourceMaterialization.h

@@ -13,6 +13,7 @@ struct ResourceSpecialization {
 		Prospero::BufferFormat descriptor_format               = Prospero::BufferFormat::kInvalid;
 		uint32_t               descriptor_swizzle              = DstSel(4, 5, 6, 7);
 		bool                   zero_stride_oob                 = false;
+		bool                   scalar_empty                    = false;
 		uint32_t               indirect_root                   = BufferResource::NoIndirectBuffer;
 		uint32_t               indirect_mapping_offset         = 0;
 		uint32_t               indirect_search_iterations      = 0;