PR 78867 Function returning string ICE with -flto

PR 78867 Function returning string ICE with -flto

The fix for PR 78757 was slightly too cautious, and covered only the
case of functions returning pointers to characters. By moving the
block above the if statement the DECL_EXPR is created also for
functions returning non-pointer characters.

Regtested on x86_64-pc-linux-gnu.

fortran ChangeLog:

2016-12-21  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/78867
	* trans-expr.c (gfc_conv_procedure_call): Emit DECL_EXPR also for
	non-pointer character results.

testsuite ChangeLog:

2016-12-21  Janne Blomqvist  <jb@gcc.gnu.org>

	PR fortran/78867
	* gfortran.dg/string_length_4.f90: New test.

From-SVN: r243842