sh: Split off some special behaviour into separate tests.

This allows some other shells to pass the tests for basic behaviour.

tools/regression/bin/sh/builtins/trap3.0

@@ -8,5 +8,4 @@
 	trap - 99999 && exit 3
 	trap true 99999 && exit 3
 } 2>/dev/null
-test -n "$(trap true garbage TERM 2>/dev/null || trap)" || exit 3
 exit 0

tools/regression/bin/sh/builtins/trap8.0

@@ -0,0 +1,7 @@
+# $FreeBSD$
+
+# I am not sure if POSIX requires the shell to continue processing
+# further trap names in the same trap command after an invalid one.
+
+test -n "$(trap true garbage TERM 2>/dev/null || trap)" || exit 3
+exit 0

tools/regression/bin/sh/parser/for1.0

@@ -13,7 +13,7 @@ for s1 in "$nl" " "; do
 	done
 done
 set -- $list
-for s2 in "$nl" " " ";" ";$nl"; do # s2=";" and ";$nl" are extensions to POSIX
+for s2 in "$nl" " "; do
 	for s3 in "$nl" " "; do
 		r=''
 		eval "for i${s2}do${s3}r=\"\$r \$i\"; done"

tools/regression/bin/sh/parser/for2.0

@@ -0,0 +1,15 @@
+# $FreeBSD$
+
+# Common extensions to the 'for' syntax.
+
+nl='
+'
+list=' a b c'
+set -- $list
+for s2 in ";" ";$nl"; do
+	for s3 in "$nl" " "; do
+		r=''
+		eval "for i${s2}do${s3}r=\"\$r \$i\"; done"
+		[ "$r" = "$list" ] || exit 1
+	done
+done