Translate attribute label with default translation helper function

Adds the translation function to customer attribute labels in Magento
admin. This gives a chance to translate a label in the locale of a
backend user.

Author: cmuench

app/code/Magento/Catalog/Test/Unit/Ui/DataProvider/Product/Form/Modifier/EavTest.php

@@ -187,7 +187,7 @@ class EavTest extends AbstractModifierTest
      * @var ObjectManager
      */
     protected $objectManager;
-    
+
     /**
      * @var Eav
      */
@@ -324,7 +324,7 @@ protected function setUp()
         $this->eavAttributeMock->expects($this->any())
             ->method('load')
             ->willReturnSelf();
-        
+
         $this->eav =$this->getModel();
         $this->objectManager->setBackwardCompatibleProperty(
             $this->eav,
@@ -561,7 +561,7 @@ private function defaultNullProdNotNewAndRequired()
                 'required'    => true,
                 'notice'      => null,
                 'default'     => null,
-                'label'       => null,
+                'label'       => new Phrase(''),
                 'code'        => 'code',
                 'source'      => 'product-details',
                 'scopeLabel'  => '',
@@ -588,7 +588,7 @@ private function defaultNullProdNotNewAndNotRequired()
                 'required'    => false,
                 'notice'      => null,
                 'default'     => null,
-                'label'       => null,
+                'label'       => new Phrase(''),
                 'code'        => 'code',
                 'source'      => 'product-details',
                 'scopeLabel'  => '',
@@ -615,7 +615,7 @@ private function defaultNullProdNewAndNotRequired()
                 'required'    => false,
                 'notice'      => null,
                 'default'     => 'required_value',
-                'label'       => null,
+                'label'       => new Phrase(''),
                 'code'        => 'code',
                 'source'      => 'product-details',
                 'scopeLabel'  => '',
@@ -642,7 +642,7 @@ private function defaultNullProdNewAndRequired()
                 'required'    => false,
                 'notice'      => null,
                 'default'     => 'required_value',
-                'label'       => null,
+                'label'       => new Phrase(''),
                 'code'        => 'code',
                 'source'      => 'product-details',
                 'scopeLabel'  => '',
@@ -669,7 +669,7 @@ private function defaultNullProdNewAndRequiredAndFilledNotice()
                 'required'    => false,
                 'notice'      => __('example notice'),
                 'default'     => 'required_value',
-                'label'       => null,
+                'label'       => new Phrase(''),
                 'code'        => 'code',
                 'source'      => 'product-details',
                 'scopeLabel'  => '',

app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/Eav.php

@@ -580,7 +580,7 @@ public function setupAttributeMeta(ProductAttributeInterface $attribute, $groupC
             'required' => $attribute->getIsRequired(),
             'notice' => $attribute->getNote() === null ? null : __($attribute->getNote()),
             'default' => (!$this->isProductExists()) ? $attribute->getDefaultValue() : null,
-            'label' => $attribute->getDefaultFrontendLabel(),
+            'label' => __($attribute->getDefaultFrontendLabel()),
             'code' => $attribute->getAttributeCode(),
             'source' => $groupCode,
             'scopeLabel' => $this->getScopeLabel($attribute),