Fixes #57. Update ::getIds() definition in migrate source plugin

Author: Chi-teck

templates/plugin/migrate/source/source.twig

@@ -85,7 +85,7 @@ class {{ class }} extends {{ base_class }} {
    * {@inheritdoc}
    */
   public function getIds() {
-    $ids['id']['type'] = [
+    $ids['id'] = [
       'type' => 'integer',
       'unsigned' => TRUE,
       'size' => 'big',

tests/dcg/Generator/Plugin/Migrate/_source_other.php

@@ -73,7 +73,7 @@ public function fields() {
    * {@inheritdoc}
    */
   public function getIds() {
-    $ids['id']['type'] = [
+    $ids['id'] = [
       'type' => 'integer',
       'unsigned' => TRUE,
       'size' => 'big',

tests/dcg/Generator/Plugin/Migrate/_source_sql.php

@@ -73,7 +73,7 @@ public function fields() {
    * {@inheritdoc}
    */
   public function getIds() {
-    $ids['id']['type'] = [
+    $ids['id'] = [
       'type' => 'integer',
       'unsigned' => TRUE,
       'size' => 'big',