([x, y]: C) => x + y gives Expected consistent spacing (standard/array-bracket-even-spacing)
([x, y]) => x + y and (c: C) => x + y are fine.
Should I file the issue here or at gajus/eslint-plugin-flowtype?
--fix doesn't get it there, but it is actually satisfied with the weird ([ x, y]: C) => x + y