Align control structure statements with method chaining

[kddnewton]

In case that some control structure statement chain methods, the indentations are not aligned.

ok:

if condition
  #...
  value1
else
  #...
  value2
end.method1 do |this|
  #...
end.method2

ng:

if condition
  #...
  value1
  else         # <- x
    #...
    value2
  end.method1  # <- x
  .method2　    # <- cause by the beginning of the line is a dot
  .method3 do
    #...
  end
  .method4

Originally from prettier/plugin-ruby#1211.

[wenderjean]

I figured out that for this specific case if I do not consider those blocks as chained at this point the formater behaves like expected but I'm not sure yet how to create the condition.

def self.chained?(node)
  case node
  in Call | MethodAddBlock[call: Call]
    true
  else
    false
  end
end

[kddnewton]

Closing this until it's rereported, as it's been open for a long time and I don't have the energy to get to it.