Issue #2612008 by webflo: Add proper field labels for vocabulary fields

core/modules/taxonomy/migration_templates/d6_vocabulary_field_instance.yml

@@ -19,6 +19,7 @@ process:
     -
       plugin: skip_on_empty
       method: row
+  label: name
   'settings/handler': 'constants/selection_handler'
   'settings/handler_settings/target_bundles/0': '@field_name'
   'settings/handler_settings/auto_create': 'constants/auto_create'

core/modules/taxonomy/src/Tests/Migrate/d6/MigrateVocabularyFieldInstanceTest.php

@@ -39,11 +39,13 @@ public function testVocabularyFieldInstance() {
     $field_id = 'node.article.tags';
     $field = FieldConfig::load($field_id);
     $this->assertIdentical($field_id, $field->id(), 'Field instance exists on article bundle.');
+    $this->assertIdentical('Tags', $field->label());
 
     // Test the page bundle as well.
     $field_id = 'node.page.tags';
     $field = FieldConfig::load($field_id);
     $this->assertIdentical($field_id, $field->id(), 'Field instance exists on page bundle.');
+    $this->assertIdentical('Tags', $field->label());
 
     $settings = $field->getSettings();
     $this->assertIdentical('default:taxonomy_term', $settings['handler'], 'The handler plugin ID is correct.');