shader_recompiler: Use functions for indirect const buffer accesses

src/shader_recompiler/shader_info.h

@@ -173,6 +173,7 @@ struct Info {
     bool uses_atomic_image_u32{};
     bool uses_shadow_lod{};
     bool uses_rescaling_uniform{};
+    bool uses_cbuf_indirect{};
 
     IR::Type used_constant_buffer_types{};
     IR::Type used_storage_buffer_types{};