Fortran: intrinsics and deferred-length character arguments [PR95947,PR110658]

gcc/fortran/ChangeLog:

	PR fortran/95947
	PR fortran/110658
	* trans-expr.cc (gfc_conv_procedure_call): For intrinsic procedures
	whose result characteristics depends on the first argument and which
	can be of type character, the character length will not be deferred.

gcc/testsuite/ChangeLog:

	PR fortran/95947
	PR fortran/110658
	* gfortran.dg/deferred_character_37.f90: New test.

(cherry picked from commit 95ddd265)