OperatorLinebreakFixer - support concatenation operator (#80)

Author: kubawerlos

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## [Unreleased]
 - Update PHP CS Fixer to v2.14
 - OperatorLinebreakFixer - respect no whitespace around operator
+- OperatorLinebreakFixer - support concatenation operator
 - Deprecate PhpdocVarAnnotationCorrectOrderFixer
 
 ## v1.12.0 - *2018-12-02*

src/Fixer/OperatorLinebreakFixer.php

@@ -25,6 +25,7 @@ final class OperatorLinebreakFixer extends AbstractFixer implements Configuratio
 
     private const NON_BOOLEAN_OPERATORS = [
         '=' => true,
+        '.' => true,
         '*' => true,
         '/' => true,
         '%' => true,

tests/Fixer/OperatorLinebreakFixerTest.php

@@ -75,6 +75,17 @@ public function provideFixCases(): \Generator
 ',
         ];
 
+        yield [
+            '<?php
+return $foo
+    .$bar;
+',
+            '<?php
+return $foo.
+    $bar;
+',
+        ];
+
         yield [
             '<?php
 return $foo +