Add special case for clone in fuzzer

Author: nikic

tools/fuzzing/target.php

@@ -2,6 +2,7 @@
 
 /** @var PhpFuzzer\Fuzzer $fuzzer */
 
+use PhpParser\Node;
 use PhpParser\Node\Expr;
 use PhpParser\Node\Scalar;
 use PhpParser\Node\Stmt;
@@ -95,6 +96,13 @@ public function leaveNode(PhpParser\Node $node) {
         ) {
             $this->hasProblematicConstruct = true;
         }
+
+        // clone($x, ) is not preserved precisely.
+        if ($node instanceof Expr\FuncCall && $node->name instanceof Node\Name &&
+            $node->name->toLowerString() == 'clone' && count($node->args) == 1
+        ) {
+            $this->hasProblematicConstruct = true;
+        }
     }
 };
 $traverser = new PhpParser\NodeTraverser();