Migrate tooltip to GlTooltipDirective

app/assets/javascripts/ide/components/mr_file_icon.vue

 <script>
-import { GlIcon } from '@gitlab/ui';
-import tooltip from '~/vue_shared/directives/tooltip';
+import { GlIcon, GlTooltipDirective } from '@gitlab/ui';
 
 export default {
   components: {
     GlIcon,
   },
   directives: {
-    tooltip,
+    GlTooltip: GlTooltipDirective,
   },
 };
 </script>
 
 <template>
   <gl-icon
-    v-tooltip
+    v-gl-tooltip
     :title="__('Part of merge request changes')"
     :size="12"
     name="git-merge"

changelogs/unreleased/okr-tooltip-merge-button-sidebar-ide.yml

+---
+title: Migrate tooltip in app/assets/javascripts/vue_merge_request_widget/components/mr_file_icon.vue
+merge_request: 46156
+author: 46156
+type: other