[Fix #10700] Update Style/EmptyMethod to not correct if the correction would exceed the configuration for Layout/LineLength

[dvandersluis]

When an empty method definition is longer than the Max allowed by Layout/LineLength, autocorrection ends up in an infinite loop: Layout/LineLength splits the method onto two lines, and then Style/EmptyMethod puts it back onto one line.

This changes Style/EmptyMethod to not perform autocorrection with EnforcedStyle: compact if the resulting change will exceed the allowed line length. An offense will still be registered but it will be up to the user to determine how to resolve it, which will prevent the infinite loop.

NOTE: this makes an assumption that Layout/LineLength takes priority over Style/EmptyMethod for the purposes of correction.

Fixes #10700.

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[bbatsov]

Looks good to me.

NOTE: this makes an assumption that Layout/LineLength takes priority over Style/EmptyMethod for the purposes of correction.

I'd document this assumption in the cop's docs as well.