[Patch, Fortran] PR33897 - Incorrect host association in modules

[Tobias Burnus]

:ADDPATCH fortran:

As promissed: The second part of the patch Paul sent me this morning.

Assume "setbd" is a host- or module-associated function (which returns
an integer); then

subroutine foo
  print *, setbd()

calls that procedure. However,

subroutine foo
  integer :: setbd
  print *, setbd()

is not the host-/module-associated procedure but an external procedure
"setbd_".

Without the patch, gfortran (wrongly) called the associated procedure
also in the latter case.

The other problem is that "ENTRY foo" always ended up in the global name
space, even if it was only a module procedure.

Build and regression tested on x86-64-linux.

OK for the trunk?

Tobias
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