-- v3: vkd3d-shader/hlsl: Return an hlsl_ir_node pointer from add_conditional(). vkd3d-shader/hlsl: Return an hlsl_ir_node pointer from hlsl_new_uint_constant(). vkd3d-shader/hlsl: Return an hlsl_ir_node pointer from hlsl_new_swizzle(). vkd3d-shader/hlsl: Return an hlsl_ir_node pointer from hlsl_new_store_index(). vkd3d-shader/hlsl: Return an hlsl_ir_node pointer from hlsl_new_simple_store(). vkd3d-shader/hlsl: Return bool from hlsl_new_store_component().