warning: The 'flush' intrinsic function is an LFortran extension
 --> tests/flush2.f90:3:5
  |
3 |     call flush()
  |     ^^^^^^^^^^^^ help: use the 'flush' statement instead

warning: The 'flush' intrinsic function is an LFortran extension
 --> tests/flush2.f90:5:5
  |
5 |     call flush(10)
  |     ^^^^^^^^^^^^^^ help: use the 'flush' statement instead

warning: The 'flush' intrinsic function is an LFortran extension
 --> tests/flush2.f90:6:5
  |
6 |     call flush()
  |     ^^^^^^^^^^^^ help: use the 'flush' statement instead
