Non-associative arrays formatting is not consistent with associative arrays

Prettier 2.6.2

PHP Plugin 0.18.5

Input:

class Test
{
    protected $array1 = [
        'published', 'title', 'description', 'position', 'nid'];

    protected $array2 = [
        0=>'published', 'title', 'description', 'position', 'nid'];
}

Output:

class Test
{
    protected $array1 = ['published', 'title', 'description', 'position', 'nid'];

    protected $array2 = [
        0 => 'published',
        'title',
        'description',
        'position',
        'nid',
    ];
}

Expected behavior:

class Test
{
    protected $array1 = [
        'published',
        'title',
        'description',
        'position',
        'nid',
    ];

    protected $array2 = [
        0 => 'published',
        'title',
        'description',
        'position',
        'nid',
    ];
}

If we break any array (associative or not) into multiple lines it should format the array as multiple lines, as it does for associative arrays. Also, this comment states that the multi-line format should be preserved.

使用 issue 中列出的 Prettier PHP plugin 版本重现报告的输入，并将输出与预期格式进行比较。首先跟踪 plugin 的数组格式化行为，包括 issue 1401 中链接的评论。完成标准是多行非关联数组保留其换行，并与显示的预期输出一致。