Merge branch '5.1' into 5.2

* 5.1:
  Update .php_cs.dist
  Apply "visibility_required" CS rule to constants

Author: nicolas-grekas

DataCollectorTranslator.php

@@ -21,9 +21,9 @@
  */
 class DataCollectorTranslator implements TranslatorInterface, TranslatorBagInterface, LocaleAwareInterface, WarmableInterface
 {
-    const MESSAGE_DEFINED = 0;
-    const MESSAGE_MISSING = 1;
-    const MESSAGE_EQUALS_FALLBACK = 2;
+    public const MESSAGE_DEFINED = 0;
+    public const MESSAGE_MISSING = 1;
+    public const MESSAGE_EQUALS_FALLBACK = 2;
 
     /**
      * @var TranslatorInterface|TranslatorBagInterface

Extractor/PhpExtractor.php

@@ -21,9 +21,9 @@
  */
 class PhpExtractor extends AbstractFileExtractor implements ExtractorInterface
 {
-    const MESSAGE_TOKEN = 300;
-    const METHOD_ARGUMENTS_TOKEN = 1000;
-    const DOMAIN_TOKEN = 1001;
+    public const MESSAGE_TOKEN = 300;
+    public const METHOD_ARGUMENTS_TOKEN = 1000;
+    public const DOMAIN_TOKEN = 1001;
 
     /**
      * Prefix for new found message.

Loader/MoFileLoader.php

@@ -22,18 +22,18 @@ class MoFileLoader extends FileLoader
      * Magic used for validating the format of a MO file as well as
      * detecting if the machine used to create that file was little endian.
      */
-    const MO_LITTLE_ENDIAN_MAGIC = 0x950412de;
+    public const MO_LITTLE_ENDIAN_MAGIC = 0x950412de;
 
     /**
      * Magic used for validating the format of a MO file as well as
      * detecting if the machine used to create that file was big endian.
      */
-    const MO_BIG_ENDIAN_MAGIC = 0xde120495;
+    public const MO_BIG_ENDIAN_MAGIC = 0xde120495;
 
     /**
      * The size of the header of a MO file in bytes.
      */
-    const MO_HEADER_SIZE = 28;
+    public const MO_HEADER_SIZE = 28;
 
     /**
      * Parses machine object (MO) format, independent of the machine's endian it

MessageCatalogueInterface.php

@@ -20,7 +20,7 @@
  */
 interface MessageCatalogueInterface
 {
-    const INTL_DOMAIN_SUFFIX = '+intl-icu';
+    public const INTL_DOMAIN_SUFFIX = '+intl-icu';
 
     /**
      * Gets the catalogue locale.