chore(no-unused-vars): Update test cases

Author: michalsnik

tests/lib/rules/no-unused-vars.js

@@ -57,11 +57,15 @@ tester.run('no-unused-vars', rule, {
       errors: ["'i' is defined but never used."]
     },
     {
-      code: '<template scope="props"></template>',
+      code: '<template><span slot-scope="props"></span></template>',
       errors: ["'props' is defined but never used."]
     },
     {
-      code: '<template v-for="i in 5"><comp v-for="j in 10">{{i}}{{i}}</comp></template>',
+      code: '<template><span><template slot-scope="props"></template></span></template>',
+      errors: ["'props' is defined but never used."]
+    },
+    {
+      code: '<template><div v-for="i in 5"><comp v-for="j in 10">{{i}}{{i}}</comp></div></template>',
       errors: ["'j' is defined but never used."]
     },
     {