hush: add recent ash tests to hush testsuite too (they all pass for hush)

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/hush_test/hush-vars/var-pattern-replacement-in-parameter-expansion-5.tests b/shell/hush_test/hush-vars/var-pattern-replacement-in-parameter-expansion-5.tests
new file mode 100755
index 0000000..5523888
--- /dev/null
+++ b/shell/hush_test/hush-vars/var-pattern-replacement-in-parameter-expansion-5.tests
@@ -0,0 +1,2 @@
+v="ab/c"
+echo ${v/b\//x}