a68: fix lowering of maxabschar [PR algol68/126330]

Signed-off-by: Jose E. Marchesi <jemarch@gnu.org>

gcc/algol68/ChangeLog

	PR algol68/126330
	* a68-low-chars.cc (a68_char_max): abscharmax is an int, not a
	char.

gcc/testsuite/ChangeLog

	* algol68/execute/max-abs-char-1.a68: New test.

(cherry picked from commit a69f9f381f229ae33cb18803d0fa916801b23570)
2 files changed