[Php55] Handle crash after exit() on GetCalledClassToSelfClassRector (#5372)

* [Php55] Handle crash after exit() on GetCalledClassToSelfClassRector

* fixed 🎉

* add test after die

Author: samsonasik

rules-tests/Php55/Rector/FuncCall/GetCalledClassToSelfClassRector/Fixture/skip_after_die.php.inc

@@ -0,0 +1,11 @@
+<?php
+
+die('blocked');
+
+function my_function () {
+    // It seems like this call below can be any function,
+    // so long as it returns something
+	return implode(',', []);
+}
+
+echo my_function();

rules-tests/Php55/Rector/FuncCall/GetCalledClassToSelfClassRector/Fixture/skip_after_exit.php.inc

@@ -0,0 +1,11 @@
+<?php
+
+exit('blocked');
+
+function my_function () {
+    // It seems like this call below can be any function,
+    // so long as it returns something
+	return implode(',', []);
+}
+
+echo my_function();

src/PHPStan/NodeVisitor/UnreachableStatementNodeVisitor.php

@@ -5,8 +5,10 @@
 namespace Rector\Core\PHPStan\NodeVisitor;
 
 use PhpParser\Node;
+use PhpParser\Node\Expr\Exit_;
 use PhpParser\Node\Stmt\ClassLike;
 use PhpParser\Node\Stmt\Declare_;
+use PhpParser\Node\Stmt\Expression;
 use PhpParser\NodeVisitorAbstract;
 use PHPStan\Analyser\MutatingScope;
 use Rector\Core\Contract\PhpParser\Node\StmtsAwareInterface;
@@ -41,7 +43,12 @@ public function enterNode(Node $node): ?Node
         );
 
         foreach ($node->stmts as $stmt) {
-            if ($stmt->getAttribute(AttributeKey::IS_UNREACHABLE) === true) {
+            if ($stmt instanceof Expression && $stmt->expr instanceof Exit_) {
+                $isPassedUnreachableStmt = true;
+                continue;
+            }
+
+            if ($stmt->getAttribute(AttributeKey::IS_UNREACHABLE) === true)  {
                 $isPassedUnreachableStmt = true;
                 continue;
             }