PSR2/SwitchDeclaration: make "wrong opener" fixable if opener is a semi-colon

src/Standards/PSR2/Sniffs/ControlStructures/SwitchDeclarationSniff.php

@@ -172,7 +172,15 @@ public function process(File $phpcsFile, $stackPtr)
                 }//end if
             } else {
                 $error = strtoupper($type).' statements must be defined using a colon';
-                $phpcsFile->addError($error, $nextCase, 'WrongOpener'.$type);
+                if ($tokens[$opener]['code'] === T_SEMICOLON) {
+                    $fix = $phpcsFile->addFixableError($error, $nextCase, 'WrongOpener'.$type);
+                    if ($fix === true) {
+                        $phpcsFile->fixer->replaceToken($opener, ':');
+                    }
+                } else {
+                    // Probably a case/default statement with colon + curly braces.
+                    $phpcsFile->addError($error, $nextCase, 'WrongOpener'.$type);
+                }
             }//end if
 
             // We only want cases from here on in.

src/Standards/PSR2/Tests/ControlStructures/SwitchDeclarationUnitTest.inc

@@ -609,3 +609,16 @@ switch ( $a ) {
 
 jumpOut:
 doSomething();
+
+// Fixable semicolon as case/default scope opener.
+switch ($value) {
+    case 'foo';
+    case 'bar' /*comment*/ ;
+    case 'baz'  ;
+        echo 'foo, bar, or baz';
+        break;
+    default;
+        echo 'Other';
+    default ;
+        echo 'Other';
+}

src/Standards/PSR2/Tests/ControlStructures/SwitchDeclarationUnitTest.inc.fixed

@@ -604,3 +604,16 @@ switch ( $a ) {
 
 jumpOut:
 doSomething();
+
+// Fixable semicolon as case/default scope opener.
+switch ($value) {
+    case 'foo':
+    case 'bar' /*comment*/:
+    case 'baz':
+        echo 'foo, bar, or baz';
+        break;
+    default:
+        echo 'Other';
+    default:
+        echo 'Other';
+}

src/Standards/PSR2/Tests/ControlStructures/SwitchDeclarationUnitTest.php

@@ -63,6 +63,11 @@ public function getErrorList()
             541 => 1,
             558 => 1,
             575 => 1,
+            615 => 1,
+            616 => 1,
+            617 => 1,
+            620 => 1,
+            622 => 1,
         ];
 
     }//end getErrorList()