bug symfony#15413 Fix the return value on error for intl methods returning arrays (stof)

This PR was merged into the 2.3 branch.

Discussion
----------

Fix the return value on error for intl methods returning arrays

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

When the resource is missing, an empty array should be returned rather than null to respect the interface saying an array is always returned.

Commits
-------

801e5e2 Fix the return value on error for intl methods returning arrays

Author: fabpot

src/Symfony/Component/Intl/ResourceBundle/CurrencyBundle.php

@@ -76,7 +76,7 @@ public function getCurrencyNames($displayLocale = null)
         try {
             return $this->getNames($displayLocale);
         } catch (MissingResourceException $e) {
-            return;
+            return array();
         }
     }
 
@@ -112,7 +112,7 @@ public function getLocales()
         try {
             return $this->localeProvider->getLocales();
         } catch (MissingResourceException $e) {
-            return;
+            return array();
         }
     }
 }

src/Symfony/Component/Intl/ResourceBundle/LanguageBundle.php

@@ -80,7 +80,7 @@ public function getLanguageNames($displayLocale = null)
         try {
             return $this->getNames($displayLocale);
         } catch (MissingResourceException $e) {
-            return;
+            return array();
         }
     }
 
@@ -104,7 +104,7 @@ public function getScriptNames($displayLocale = null)
         try {
             return $this->scriptProvider->getNames($displayLocale);
         } catch (MissingResourceException $e) {
-            return;
+            return array();
         }
     }
 
@@ -116,7 +116,7 @@ public function getLocales()
         try {
             return $this->localeProvider->getLocales();
         } catch (MissingResourceException $e) {
-            return;
+            return array();
         }
     }
 }

src/Symfony/Component/Intl/ResourceBundle/LocaleBundle.php

@@ -31,7 +31,7 @@ public function getLocales()
         try {
             return parent::getLocales();
         } catch (MissingResourceException $e) {
-            return;
+            return array();
         }
     }
 
@@ -55,7 +55,7 @@ public function getLocaleNames($displayLocale = null)
         try {
             return $this->getNames($displayLocale);
         } catch (MissingResourceException $e) {
-            return;
+            return array();
         }
     }
 }

src/Symfony/Component/Intl/ResourceBundle/RegionBundle.php

@@ -64,7 +64,7 @@ public function getCountryNames($displayLocale = null)
         try {
             return $this->getNames($displayLocale);
         } catch (MissingResourceException $e) {
-            return;
+            return array();
         }
     }
 
@@ -76,7 +76,7 @@ public function getLocales()
         try {
             return $this->localeProvider->getLocales();
         } catch (MissingResourceException $e) {
-            return;
+            return array();
         }
     }
 }