Diagnostics from A1.kt:
  for PSI element of type KtClass at (6,1) - (7,8)
    CLASSIFIER_REDECLARATION      text ranges: [(101,102)]
      PSI: KtClass at (6,1) - (7,8)

Diagnostics from A2.kt:
  for PSI element of type KtClass at (9,1) - (10,8)
    CLASSIFIER_REDECLARATION      text ranges: [(29,30)]
      PSI: KtClass at (9,1) - (10,8)

Diagnostics from A3.kt:
  for PSI element of type KtClass at (12,1) - (13,8)
    CLASSIFIER_REDECLARATION      text ranges: [(32,33)]
      PSI: KtClass at (12,1) - (13,8)
