hush: add tests for unquoted < > in [[ ]]

They pass.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/hush_test/hush-test2/strops4.right b/shell/hush_test/hush-test2/strops4.right
new file mode 100644
index 0000000..53a1762
--- /dev/null
+++ b/shell/hush_test/hush-test2/strops4.right
@@ -0,0 +1,2 @@
+1:no:1
+2:YES:0
diff --git a/shell/hush_test/hush-test2/strops4.tests b/shell/hush_test/hush-test2/strops4.tests
new file mode 100755
index 0000000..bb38142
--- /dev/null
+++ b/shell/hush_test/hush-test2/strops4.tests
@@ -0,0 +1,3 @@
+# < > are not redirect operators
+[[ a > b ]]; echo 1:no:$?
+[[ a < b ]]; echo 2:YES:$?