swift234

Show decls in import kind warnings.

  main.swift: error: ambiguous name 'A' in module 'letters'
      import struct letters.A
  abcde.A: note: found this candidate
      struct A {}
  aeiou.A: note: found this candidate
      struct A {}

  main.swift: 'B' was imported as 'var', but is a struct
      import var letters.B
  abcde.B: note: 'B' declared here
      struct B {}

<rdar://problem/14650883>

Swift SVN r6918