warning: .xor. is an LFortran extension
  --> tests/../integration_tests/logical3.f90:24:5
   |
24 | if (a .xor. b) then
   |     ^^^^^^^^^ LFortran extension

warning: .xor. is an LFortran extension
  --> tests/../integration_tests/logical3.f90:74:5
   |
74 | if (a .xor. b) then
   |     ^^^^^^^^^ LFortran extension
