[dx] Deprecate CombineIfRector

config/set/if.php

@@ -2,11 +2,9 @@
 
 declare(strict_types=1);
 
-use Rector\CodeQuality\Rector\If_\CombineIfRector;
 use Rector\Config\RectorConfig;
 
+// note: all if rules were moved to code quality and coding style sets, or deprecated
 return static function (RectorConfig $rectorConfig): void {
-    $rectorConfig->rules([
-        CombineIfRector::class,
-    ]);
+    $rectorConfig->rules([]);
 };

phpstan.neon

@@ -65,6 +65,11 @@ parameters:
         constants: true
 
     ignoreErrors:
+        # keepComments() is a generic helper; do not narrow it after the deprecated CombineIfRector stopped calling it
+        -
+            identifier: typePerfect.narrowPublicClassMethodParamType
+            path: src/BetterPhpDocParser/Comment/CommentsMerger.php
+
         # the deprecated set objects are still resolved internally, until every extension bonds its rules
         -
             message: '#deprecated (class|interface) Rector\\(Set|Bridge)\\#'