ash: copy function tests from hush testsuite

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/ash_test/ash-misc/func_local1.tests b/shell/ash_test/ash-misc/func_local1.tests
new file mode 100755
index 0000000..1d594e2
--- /dev/null
+++ b/shell/ash_test/ash-misc/func_local1.tests
@@ -0,0 +1,5 @@
+export z=z
+f() { local z=a; env | grep ^z; }
+f
+env | grep ^z
+echo Done