frontend-passes.c (cfe_register_funcs): Also register character functions if their charlens are known and constant.

2011-05-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* frontend-passes.c (cfe_register_funcs):  Also register
	character functions if their charlens are known and constant.
	Also register allocatable functions.

2011-05-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* gfortran.dg/function_optimize_8.f90:  New test case.

From-SVN: r174027