ahell: update testsuite

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

shell/ash_test/ash-vars/var6.right

@@ -0,0 +1,2 @@
+SHELL: line 1: syntax error: bad substitution
+SHELL: line 1: syntax error: bad substitution

shell/ash_test/ash-vars/var6.tests

@@ -0,0 +1,5 @@
+# reject invalid vars
+# (set argv0 to "SHELL" to avoid "/path/to/shell: blah" in error messages)
+"$THIS_SH" -c 'echo ${1q}' SHELL
+"$THIS_SH" -c 'echo ${&}' SHELL
+#"$THIS_SH" -c 'echo ${$}' SHELL -- this is valid as it's the same as $$

shell/ash_test/ash-vars/var_nested1.right

@@ -0,0 +1,3 @@
+Expected:AB Actual:AB
+Expected:Ab Actual:Ab
+Expected:ab Actual:ab

shell/ash_test/ash-vars/var_nested1.tests

@@ -0,0 +1,16 @@
+f() { a=A; b=B; }
+
+a=a
+b=b
+f
+echo Expected:AB Actual:$a$b
+
+a=a
+b=b
+b= f
+echo Expected:Ab Actual:$a$b
+
+a=a
+b=b
+a= b= f
+echo Expected:ab Actual:$a$b

shell/ash_test/ash-vars/var_nested2.right

@@ -0,0 +1 @@
+aB

shell/ash_test/ash-vars/var_nested2.tests

@@ -0,0 +1,2 @@
+# the bug was easier to trigger in one-liner form
+a=a; b=b; f() { a=A; b=B; }; a= f; echo $a$b

shell/hush_test/hush-vars/var6.tests

@@ -1,4 +1,5 @@
 # reject invalid vars
-"$THIS_SH" -c 'echo ${1q}'
-"$THIS_SH" -c 'echo ${&}'
-#"$THIS_SH" -c 'echo ${$}' -- this is valid as it's the same as $$
+# (set argv0 to "SHELL" to avoid "/path/to/shell: blah" in error messages)
+"$THIS_SH" -c 'echo ${1q}' SHELL
+"$THIS_SH" -c 'echo ${&}' SHELL
+#"$THIS_SH" -c 'echo ${$}' SHELL -- this is valid as it's the same as $$