Add T_INSTANCEOF to OperatorSpacingSniff

Author: grongor

src/Standards/Squiz/Sniffs/WhiteSpace/OperatorSpacingSniff.php

@@ -46,6 +46,7 @@ public function register()
         $targets  += Tokens::$assignmentTokens;
         $targets[] = T_INLINE_THEN;
         $targets[] = T_INLINE_ELSE;
+        $targets[] = T_INSTANCEOF;
 
         return $targets;
 

src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc

@@ -260,3 +260,7 @@ function bar(): array {}
 if ($line{-1} === ':') {
     $line = substr($line, 0, -1);
 }
+
+$a = $a instanceof $b;
+$a = $a  instanceof  $b;
+$a = ($a)instanceof$b;

src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc.fixed

@@ -254,3 +254,7 @@ function bar(): array {}
 if ($line{-1} === ':') {
     $line = substr($line, 0, -1);
 }
+
+$a = $a instanceof $b;
+$a = $a instanceof $b;
+$a = ($a) instanceof $b;

src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.php

@@ -96,6 +96,8 @@ public function getErrorList($testFile='OperatorSpacingUnitTest.inc')
                 201 => 2,
                 239 => 1,
                 246 => 1,
+                265 => 2,
+                266 => 2,
             ];
             break;
         case 'OperatorSpacingUnitTest.js':