[patch, committed] PR83225 - [8.0 regression] runtime error in transfer.c

[Jerry DeLisle]

I have committed the following as simple after full regression testing on
linux-x64_86:

It is also a regression on the 7 branch and I will commit there as well.

Author: jvdelisle
Date: Sun Dec  3 03:26:09 2017
New Revision: 255362

URL: https://gcc.gnu.org/viewcvs?rev=255362&root=gcc&view=rev
Log:
2017-12-02  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/83225
	* io/io.h (is_internal_unit): Use the unit_is_internal bit.
	* io/transfer.c (data_transfer_init): Set the bit to true for
	internal umits. Use that bit for checks for internal unit
	initializations.
	* io/unit.c (insert_unit): As a precaution, set the
	internal_unit_kind to zero when a unit structure is first created.

Modified:
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/io/io.h
    trunk/libgfortran/io/transfer.c
    trunk/libgfortran/io/unit.c