renderArrayType

fn renderArrayType(
    r: *Render,
    array_type: Ast.full.ArrayType,
    space: Space,
) Error!void {
    const tree = r.tree;
    const ais = r.ais;
    const rbracket = tree.firstToken(array_type.ast.elem_type) - 1;
    const one_line = tree.tokensOnSameLine(array_type.ast.lbracket, rbracket) and
        !try rendersMultiline(r, array_type.ast.elem_count) and
        (if (array_type.ast.sentinel.unwrap()) |s| !try rendersMultiline(r, s) else true);
    const inner_space = if (one_line) Space.none else Space.newline;
    try ais.pushIndent(.normal);
    try renderToken(r, array_type.ast.lbracket, inner_space); // lbracket
    try renderExpression(r, array_type.ast.elem_count, inner_space);
    if (array_type.ast.sentinel.unwrap()) |sentinel| {
        try renderToken(r, tree.firstToken(sentinel) - 1, inner_space); // colon
        try renderExpression(r, sentinel, inner_space);
    }
    ais.popIndent();
    try renderToken(r, rbracket, .none); // rbracket
    return renderExpression(r, array_type.ast.elem_type, space);
}