Implement MAXLOC and MINLOC for unsigned.

gcc/fortran/ChangeLog:

	* check.cc (gfc_check_minloc_maxloc): Handle BT_UNSIGNED.
	* trans-intrinsic.cc (gfc_conv_intrinsic_minmaxloc): Likewise.
	* gfortran.texi: Document MAXLOC and MINLOC for UNSIGNED.

libgfortran/ChangeLog:

	* Makefile.am: Add files for unsigned MINLOC and MAXLOC.
	* Makefile.in: Regenerated.
	* gfortran.map: Add files for unsigned MINLOC and MAXLOC.
	* generated/maxloc0_16_m1.c: New file.
	* generated/maxloc0_16_m16.c: New file.
	* generated/maxloc0_16_m2.c: New file.
	* generated/maxloc0_16_m4.c: New file.
	* generated/maxloc0_16_m8.c: New file.
	* generated/maxloc0_4_m1.c: New file.
	* generated/maxloc0_4_m16.c: New file.
	* generated/maxloc0_4_m2.c: New file.
	* generated/maxloc0_4_m4.c: New file.
	* generated/maxloc0_4_m8.c: New file.
	* generated/maxloc0_8_m1.c: New file.
	* generated/maxloc0_8_m16.c: New file.
	* generated/maxloc0_8_m2.c: New file.
	* generated/maxloc0_8_m4.c: New file.
	* generated/maxloc0_8_m8.c: New file.
	* generated/maxloc1_16_m1.c: New file.
	* generated/maxloc1_16_m2.c: New file.
	* generated/maxloc1_16_m4.c: New file.
	* generated/maxloc1_16_m8.c: New file.
	* generated/maxloc1_4_m1.c: New file.
	* generated/maxloc1_4_m16.c: New file.
	* generated/maxloc1_4_m2.c: New file.
	* generated/maxloc1_4_m4.c: New file.
	* generated/maxloc1_4_m8.c: New file.
	* generated/maxloc1_8_m1.c: New file.
	* generated/maxloc1_8_m16.c: New file.
	* generated/maxloc1_8_m2.c: New file.
	* generated/maxloc1_8_m4.c: New file.
	* generated/maxloc1_8_m8.c: New file.
	* generated/minloc0_16_m1.c: New file.
	* generated/minloc0_16_m16.c: New file.
	* generated/minloc0_16_m2.c: New file.
	* generated/minloc0_16_m4.c: New file.
	* generated/minloc0_16_m8.c: New file.
	* generated/minloc0_4_m1.c: New file.
	* generated/minloc0_4_m16.c: New file.
	* generated/minloc0_4_m2.c: New file.
	* generated/minloc0_4_m4.c: New file.
	* generated/minloc0_4_m8.c: New file.
	* generated/minloc0_8_m1.c: New file.
	* generated/minloc0_8_m16.c: New file.
	* generated/minloc0_8_m2.c: New file.
	* generated/minloc0_8_m4.c: New file.
	* generated/minloc0_8_m8.c: New file.
	* generated/minloc1_16_m1.c: New file.
	* generated/minloc1_16_m16.c: New file.
	* generated/minloc1_16_m2.c: New file.
	* generated/minloc1_16_m4.c: New file.
	* generated/minloc1_16_m8.c: New file.
	* generated/minloc1_4_m1.c: New file.
	* generated/minloc1_4_m16.c: New file.
	* generated/minloc1_4_m2.c: New file.
	* generated/minloc1_4_m4.c: New file.
	* generated/minloc1_4_m8.c: New file.
	* generated/minloc1_8_m1.c: New file.
	* generated/minloc1_8_m16.c: New file.
	* generated/minloc1_8_m2.c: New file.
	* generated/minloc1_8_m4.c: New file.
	* generated/minloc1_8_m8.c: New file.

gcc/testsuite/ChangeLog:

	* gfortran.dg/unsigned_35.f90: New test.