gfortran.texi: Document additional src/dst_type.

gfortran.texi: Document additional src/dst_type.

gcc/fortran/ChangeLog:

2018-02-19  Andre Vehreschild  <vehre@gcc.gnu.org>

	* gfortran.texi: Document additional src/dst_type.  Fix some typos.
	* trans-decl.c (gfc_build_builtin_function_decls): Declare the new
	argument of _caf_*_by_ref () with * e { get, send, sendget }.
	* trans-intrinsic.c (gfc_conv_intrinsic_caf_get): Add the type of the
	data referenced when generating a call to caf_get_by_ref ().
	(conv_caf_send): Same but for caf_send_by_ref () and
	caf_sendget_by_ref ().

gcc/testsuite/ChangeLog:

2018-02-19  Andre Vehreschild  <vehre@gcc.gnu.org>

	* gfortran.dg/coarray_alloc_comp_6.f08: New test.
	* gfortran.dg/coarray_alloc_comp_7.f08: New test.
	* gfortran.dg/coarray_alloc_comp_8.f08: New test.

libgfortran/ChangeLog:

2018-02-19  Andre Vehreschild  <vehre@gcc.gnu.org>

	* caf/libcaf.h: Add type parameters to the caf_*_by_ref prototypes.
	* caf/single.c (get_for_ref): Simplifications and now respecting
	the type argument.
	(_gfortran_caf_get_by_ref): Added source type handing to get_for_ref().
	(send_by_ref): Simplifications and respecting the dst_type now.
	(_gfortran_caf_send_by_ref): Added destination type hand over to
	send_by_ref().
	(_gfortran_caf_sendget_by_ref): Added general support and fixed stack
	corruption.  The function is now really usable.

From-SVN: r257813