Fortran: Add caf_is_present_on_remote. [PR107635]

Fortran: Add caf_is_present_on_remote. [PR107635]

Replace caf_is_present by caf_is_present_on_remote which is using a
dedicated callback for each object to test on the remote image.

gcc/fortran/ChangeLog:

	PR fortran/107635

	* coarray.cc (create_allocated_callback): Add creating remote
	side procedure for checking allocation status of coarray.
	(rewrite_caf_allocated): Rewrite ALLOCATED on coarray to use caf
	routine.
	(coindexed_expr_callback): Exempt caf_is_present_on_remote from
	being rewritten again.
	* gfortran.h (enum gfc_isym_id): Add caf_is_present_on_remote
	id.
	* gfortran.texi: Add documentation for caf_is_present_on_remote.
	* intrinsic.cc (add_functions): Add caf_is_present_on_remote
	symbol.
	* trans-decl.cc (gfc_build_builtin_function_decls): Define
	interface of caf_is_present_on_remote.
	* trans-intrinsic.cc (gfc_conv_intrinsic_caf_is_present_remote):
	Translate caf_is_present_on_remote.
	(trans_caf_is_present): Remove.
	(caf_this_image_ref): Remove.
	(gfc_conv_allocated): Take out coarray treatment, because that
	is rewritten to caf_is_present_on_remote now.
	(gfc_conv_intrinsic_function): Handle caf_is_present_on_remote
	calls.
	* trans.h: Add symbol for caf_is_present_on_remote and remove
	old one.

libgfortran/ChangeLog:

	* caf/libcaf.h (_gfortran_caf_is_present_on_remote): Add new
	function.
	(_gfortran_caf_is_present): Remove deprecated one.
	* caf/single.c (struct accessor_hash_t): Add function ptr access
	for remote side call.
	(_gfortran_caf_is_present_on_remote): Added.
	(_gfortran_caf_is_present): Removed.

gcc/testsuite/ChangeLog:

	* gfortran.dg/coarray/coarray_allocated.f90: Adapt to new method
	of checking on remote image.
	* gfortran.dg/coarray_lib_alloc_4.f90: Same.