[flang] Missing diagnostic that an assumed-size array is being passed as the `ac-value` of an array constructor

[DanielCChen]

Consider the following case:

real :: arr(4)
call sub(arr)
contains
  subroutine sub(arg)
    real :: arg(*)
    call sub2([arg]) !! Should be error
  end
  subroutine sub2(arg)
    real :: arg(:)
  end
end

An assumed-size array shall not be allowed as the ac-value of an array constructor as it doesn't provide the shape information.
All ifort, gfortran and XLF issue an error message.

[llvmbot]

@llvm/issue-subscribers-flang-frontend

Author: Daniel Chen (DanielCChen)

Consider the following case: ``` real :: arr(4) call sub(arr) contains subroutine sub(arg) real :: arg(*) call sub2([arg]) !! Should be error end subroutine sub2(arg) real :: arg(:) end end ```

An assumed-size array shall not be allowed as the ac-value of an array constructor as it doesn't provide the shape information.
All ifort, gfortran and XLF issue an error message.