fix: avoid unwrapping empty array initializer with comments

[jtkiesel]

What changed with this PR:

Empty array initializers with comments are no longer unwrapped to avoid making code uncompilable.

Example

Input

class Example {

  String[] DATA = {
    // nothing yet
  };
}

Output

class Example {

  String[] DATA = {
    // nothing yet
  };
}

Relative issues or prs:

Closes #782