[Performance]EarlyReturn] Reduce repetitive findFirst() on IfAndAnaly…

…zer::isIfStmtExprUsedInNextReturn() (#5709)

* [Performance]EarlyReturn] Reduce repetitive findFirst() on IfAndAnalyzer::isIfStmtExprUsedInNextReturn()

* check empty stmts early

* clean up

rules/EarlyReturn/NodeAnalyzer/IfAndAnalyzer.php

@@ -38,16 +38,17 @@ public function isIfStmtExprUsedInNextReturn(If_ $if, Return_ $return): bool
         }
 
         $ifExprs = $this->betterNodeFinder->findInstanceOf($if->stmts, Expr::class);
-        foreach ($ifExprs as $ifExpr) {
-            $isExprFoundInReturn = (bool) $this->betterNodeFinder->findFirst(
-                $return->expr,
-                fn (Node $node): bool => $this->nodeComparator->areNodesEqual($node, $ifExpr)
-            );
-            if ($isExprFoundInReturn) {
-                return true;
+        return (bool) $this->betterNodeFinder->findFirst(
+            $return->expr,
+            function (Node $node) use ($ifExprs): bool {
+                foreach ($ifExprs as $ifExpr) {
+                    if ($this->nodeComparator->areNodesEqual($node, $ifExpr)) {
+                        return true;
+                    }
+                }
+
+                return false;
             }
-        }
-
-        return false;
+        );
     }
 }