Conditionally compiled imports not sorted

[natecook1000]

Imports outside of conditional compilation blocks are sorted, but inside, the ordering of imports is ignored. For example, this code:

import Zebras
import Apples
#if canImport(Darwin)
  import Foundation
  import Darwin
#elseif canImport(Glibc)
  import Glibc
  import Foundation
#endif
import Aardvarks

is currently formatted as:

import Aardvarks
import Apples
import Zebras

#if canImport(Darwin)
  import Foundation
  import Darwin
#elseif canImport(Glibc)
  import Glibc
  import Foundation
#endif

leaving the Foundation imports out of order. The result should be:

import Aardvarks
import Apples
import Zebras

#if canImport(Darwin)
  import Darwin
  import Foundation
#elseif canImport(Glibc)
  import Foundation
  import Glibc
#endif