Fix handling of throw statements when nikic/php-parser ^4.18 is used

src/StaticAnalysis/ExecutableLinesFindingVisitor.php

@@ -116,6 +116,21 @@ public function enterNode(Node $node): void
             return;
         }
 
+        /**
+         * nikic/php-parser ^4.18 represents <code>throw</code> statements
+         * as <code>Stmt\Throw_</code> objects
+         */
+        if ($node instanceof Node\Stmt\Throw_) {
+            $this->setLineBranch($node->expr->getEndLine(), $node->expr->getEndLine(), ++$this->nextBranch);
+
+            return;
+        }
+
+        /**
+         * nikic/php-parser ^5 represents <code>throw</code> statements
+         * as <code>Stmt\Expression</code> objects that contain an
+         * <code>Expr\Throw_</code> object
+         */
         if ($node instanceof Node\Stmt\Expression && $node->expr instanceof Node\Expr\Throw_) {
             $this->setLineBranch($node->expr->expr->getEndLine(), $node->expr->expr->getEndLine(), ++$this->nextBranch);