[flang-commits] [flang] [flang][preprocessing] Mix preprocessing directives with free form li… (PR #96244)

[via flang-commits]

foxtran wrote:

Another example with .f90:
test.f90:
```fortran
        program main
#include "inc.f"
     &.44
      end program main
```

inc.f:
```fortran
print *, 5.&
```

After running flang tests:
```
$ flang-new -fc1 -E test.f90
#line "./test.f90" 1
      program main
#line "./inc.f" 1
      print 5.end program main
```
while the expected output is:
```
$ flang-new -fc1 -E test.f90
#line "./test.f90" 1
      program main
#line "./inc.f" 1
      print 5.44
#line ??? ! I have no idea :)
      end program main
```

https://github.com/llvm/llvm-project/pull/96244