chore(eslint-plugin-formatjs): add test for tag placeholder case

Author: longlho

package-lock.json

@@ -407,6 +407,15 @@ _({
   defaultMessage: '{count, plural, one {#} other {# more}}',
   description: 'asd'
 })
+`,
+    `
+intl.formatMessage({
+  defaultMessage: '{count, plural, one {<a>#</a>} other {# more}}',
+  description: 'asd'
+}, {
+  count: 1,
+  a: (...chunks) => <a>{chunks}</a>
+})
 `,
     dynamicMessage,
     noMatch,
@@ -463,6 +472,21 @@ _({
         },
       ],
     },
+    {
+      code: `
+      intl.formatMessage({
+        defaultMessage: '{count, plural, one {<a>#</a>} other {# more}}',
+        description: 'asd'
+      }, {
+        count: 1,
+      })
+      `,
+      errors: [
+        {
+          message: 'Missing value for placeholder "a"',
+        },
+      ],
+    },
   ],
 });