Function i_slint_compiler::object_tree::inject_element_as_repeated_element

pub fn inject_element_as_repeated_element(
    repeated_element: &ElementRc, 
    new_root: ElementRc
)

This function replace the root element of a repeated element. the previous root becomes the only child of the new root element. Note that no reference to the base component must exist outside of repeated_element.base_type