Add newlines before comments in E305

[charliermarsh]

Summary

There's still a problem here. Given:

class Class():
    pass

    # comment

    # another comment
a = 1

We only add one newline before a = 1 on the first pass, because max_precedling_blank_lines is 1... We then add the second newline on the second pass, so it ends up in the right state, but the logic is clearly wonky.

Closes #11508.

[github-actions]

ruff-ecosystem results

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[kaddkaka]

Are comments always tied to the next code line independent of indentation? Or does the indentation of a comment control where the empty lines are inserted?

[charliermarsh]

Should be the latter (controlled by indentation).