Diagnostics from file:
  for PSI element of type KtNamedFunction at (2,1-28)
    ANONYMOUS_FUNCTION_WITH_NAME      text ranges: [(12,15)]
      PSI: KtNamedFunction at (2,1-28)
  for PSI element of type KtNameReferenceExpression at (2,27-28)
    RETURN_TYPE_MISMATCH      text ranges: [(34,35)]
      PSI: KtNameReferenceExpression at (2,27-28)
  for PSI element of type KtNameReferenceExpression at (1,2-5)
    UNRESOLVED_REFERENCE      text ranges: [(1,4)]
      PSI: KtNameReferenceExpression at (1,2-5)
