removal of unnecessary file, and composer update

vendor/nikic/php-parser/doc/0_Introduction.markdown

@@ -1,7 +1,7 @@
 Introduction
 ============
 
-This project is a PHP 5.2 to PHP 7.2 parser **written in PHP itself**.
+This project is a PHP 5.2 to PHP 7.3 parser **written in PHP itself**.
 
 What is this for?
 -----------------
@@ -26,11 +26,11 @@ programmatic PHP code analysis are incidentally PHP developers, not C developers
 What can it parse?
 ------------------
 
-The parser supports parsing PHP 5.2-7.2.
+The parser supports parsing PHP 5.2-7.3.
 
 As the parser is based on the tokens returned by `token_get_all` (which is only able to lex the PHP
 version it runs on), additionally a wrapper for emulating tokens from newer versions is provided.
-This allows to parse PHP 7.2 source code running on PHP 5.5, for example. This emulation is somewhat
+This allows to parse PHP 7.3 source code running on PHP 7.0, for example. This emulation is somewhat
 hacky and not perfect, but it should work well on any sane code.
 
 What output does it produce?

vendor/nikic/php-parser/doc/2_Usage_of_basic_components.markdown

@@ -339,7 +339,8 @@ All four methods can either return the changed node or not return at all (i.e. `
 case the current node is not changed.
 
 The `enterNode()` method can additionally return the value `NodeTraverser::DONT_TRAVERSE_CHILDREN`,
-which instructs the traverser to skip all children of the current node.
+which instructs the traverser to skip all children of the current node. To furthermore prevent subsequent
+visitors from visiting the current node, `NodeTraverser::DONT_TRAVERSE_CURRENT_AND_CHILDREN` can be used instead.
 
 The `leaveNode()` method can additionally return the value `NodeTraverser::REMOVE_NODE`, in which
 case the current node will be removed from the parent array. Furthermore it is possible to return

vendor/nikic/php-parser/doc/component/JSON_representation.markdown

@@ -116,8 +116,8 @@ The JSON representation may be converted back into an AST using the `JsonDecoder
 ```php
 <?php
 
-$nodeDecoder = new PhpParser\NodeDecoder();
-$ast = $nodeDecoder->decode($json);
+$jsonDecoder = new PhpParser\JsonDecoder();
+$ast = $jsonDecoder->decode($json);
 ```
 
 Note that not all ASTs can be represented using JSON. In particular:
@@ -128,4 +128,4 @@ Note that not all ASTs can be represented using JSON. In particular:
 
 If the node tree is not representable in JSON, the initial `json_encode()` call will fail.
 
-From the command line, a JSON dump can be obtained using `vendor/bin/php-parse -j file.php`.
+From the command line, a JSON dump can be obtained using `vendor/bin/php-parse -j file.php`.

vendor/nikic/php-parser/doc/component/Walking_the_AST.markdown

@@ -215,7 +215,7 @@ once you found it:
 private $class = null;
 public function enterNode(Node $node) {
     if ($node instanceof Node\Stmt\Class_ &&
-        $node->namespaceName->toString() === 'Foo\Bar\Baz'
+        $node->namespacedName->toString() === 'Foo\Bar\Baz'
     ) {
         $this->class = $node;
         return NodeTraverser::STOP_TRAVERSAL;
@@ -235,7 +235,7 @@ A single traverser can be used with multiple visitors:
 $traverser = new NodeTraverser;
 $traverser->addVisitor($visitorA);
 $traverser->addVisitor($visitorB);
-$stmts = $traverser->traverser($stmts);
+$stmts = $traverser->traverse($stmts);
 ```
 
 It is important to understand that if a traverser is run with multiple visitors, the visitors will
@@ -281,6 +281,8 @@ special enterNode/leaveNode return values:
 
  * If *any* visitor returns `DONT_TRAVERSE_CHILDREN`, the children will be skipped for *all*
    visitors.
+ * If *any* visitor returns `DONT_TRAVERSE_CURRENT_AND_CHILDREN`, the children will be skipped for *all*
+   visitors, and all *subsequent* visitors will not visit the current node.
  * If *any* visitor returns `STOP_TRAVERSAL`, traversal is stopped for *all* visitors.
  * If a visitor returns a replacement node, subsequent visitors will be passed the replacement node,
    not the original one.
@@ -305,7 +307,7 @@ $nodeFinder = new NodeFinder;
 $classes = $nodeFinder->findInstanceOf($stmts, Node\Stmt\Class_::class);
 
 // Find all classes that extend another class
-$extendingClasses = $nodeFinder->findInstanceOf($stmts, function(Node $node) {
+$extendingClasses = $nodeFinder->find($stmts, function(Node $node) {
     return $node instanceof Node\Stmt\Class_
         && $node->extends !== null;
 });
@@ -332,4 +334,4 @@ reverse direction: When working on a node, you might want to check if the parent
 certain property.
 
 PHP-Parser does not add parent (or sibling) references to nodes by itself, but you can easily
-emulate this with a visitor. See the [FAQ](FAQ.markdown) for more information.
+emulate this with a visitor. See the [FAQ](FAQ.markdown) for more information.