Move NodeVisitors to own namespace

src/NodeVisitors/ColumnCalculator.php

@@ -1,7 +1,7 @@
 <?php
 declare(strict_types = 1);
 
-namespace LanguageServer;
+namespace LanguageServer\NodeVisitors;
 
 use PhpParser\{NodeVisitorAbstract, Node};
 

src/NodeVisitors/SymbolFinder.php

@@ -1,7 +1,7 @@
 <?php
 declare(strict_types = 1);
 
-namespace LanguageServer;
+namespace LanguageServer\NodeVisitors;
 
 use PhpParser\{NodeVisitorAbstract, Node};
 

src/PhpDocument.php

@@ -3,8 +3,8 @@ declare(strict_types = 1);
 
 namespace LanguageServer;
 
-use \LanguageServer\Protocol\{Diagnostic, DiagnosticSeverity, Range, Position, SymbolKind, TextEdit};
-
+use LanguageServer\Protocol\{Diagnostic, DiagnosticSeverity, Range, Position, SymbolKind, TextEdit};
+use LanguageServer\NodeVisitors\{SymbolFinder, ColumnCalculator};
 use PhpParser\{Error, Comment, Node, ParserFactory, NodeTraverser, Lexer, Parser};
 use PhpParser\PrettyPrinter\Standard as PrettyPrinter;
 use PhpParser\NodeVisitor\NameResolver;