Fix deprecations

Author: ondrejmirtes

src/Dependency/ExportedNodeVisitor.php

@@ -3,7 +3,7 @@
 namespace PHPStan\Dependency;
 
 use PhpParser\Node;
-use PhpParser\NodeTraverser;
+use PhpParser\NodeVisitor;
 use PhpParser\NodeVisitorAbstract;
 use PHPStan\ShouldNotHappenException;
 
@@ -52,7 +52,7 @@ public function enterNode(Node $node): ?int
 			|| $node instanceof Node\Stmt\Function_
 			|| $node instanceof Node\Stmt\Trait_
 		) {
-			return NodeTraverser::DONT_TRAVERSE_CHILDREN;
+			return NodeVisitor::DONT_TRAVERSE_CHILDREN;
 		}
 
 		return null;

src/Reflection/BetterReflection/SourceLocator/CachingVisitor.php

@@ -4,7 +4,7 @@
 
 use PhpParser\Node;
 use PhpParser\Node\Stmt\Namespace_;
-use PhpParser\NodeTraverser;
+use PhpParser\NodeVisitor;
 use PhpParser\NodeVisitorAbstract;
 use PHPStan\BetterReflection\Reflection\Exception\InvalidConstantNode;
 use PHPStan\BetterReflection\SourceLocator\Located\LocatedSource;
@@ -51,7 +51,7 @@ public function enterNode(Node $node): ?int
 				);
 			}
 
-			return NodeTraverser::DONT_TRAVERSE_CHILDREN;
+			return NodeVisitor::DONT_TRAVERSE_CHILDREN;
 		}
 
 		if ($node instanceof Node\Stmt\Function_) {
@@ -64,7 +64,7 @@ public function enterNode(Node $node): ?int
 				);
 			}
 
-			return NodeTraverser::DONT_TRAVERSE_CHILDREN;
+			return NodeVisitor::DONT_TRAVERSE_CHILDREN;
 		}
 
 		if ($node instanceof Node\Stmt\Const_) {
@@ -80,7 +80,7 @@ public function enterNode(Node $node): ?int
 				);
 			}
 
-			return NodeTraverser::DONT_TRAVERSE_CHILDREN;
+			return NodeVisitor::DONT_TRAVERSE_CHILDREN;
 		}
 
 		if ($node instanceof Node\Expr\FuncCall) {
@@ -101,7 +101,7 @@ public function enterNode(Node $node): ?int
 			);
 			$this->constantNodes[ConstantNameHelper::normalize($constantName)][] = $constantNode;
 
-			return NodeTraverser::DONT_TRAVERSE_CHILDREN;
+			return NodeVisitor::DONT_TRAVERSE_CHILDREN;
 		}
 
 		return null;

src/Rules/Whitespace/FileWhitespaceRule.php

@@ -5,6 +5,7 @@
 use Nette\Utils\Strings;
 use PhpParser\Node;
 use PhpParser\NodeTraverser;
+use PhpParser\NodeVisitor;
 use PhpParser\NodeVisitorAbstract;
 use PHPStan\Analyser\Scope;
 use PHPStan\Node\FileNode;
@@ -61,7 +62,7 @@ public function enterNode(Node $node)
 					}
 					return null;
 				}
-				return NodeTraverser::DONT_TRAVERSE_CURRENT_AND_CHILDREN;
+				return NodeVisitor::DONT_TRAVERSE_CURRENT_AND_CHILDREN;
 			}
 
 			/**