Bump phpstan

Fixes a number of phpstan issues.

src/DocBlock/StandardTagFactory.php

@@ -47,7 +47,6 @@ use function array_key_exists;
 use function array_merge;
 use function array_slice;
 use function call_user_func_array;
-use function count;
 use function get_class;
 use function is_object;
 use function preg_match;
@@ -205,10 +204,6 @@ final class StandardTagFactory implements TagFactory
             );
         }
 
-        if (count($matches) < 3) {
-            $matches[] = '';
-        }
-
         return array_slice($matches, 1);
     }
 

src/DocBlock/Tags/Example.php

@@ -94,10 +94,10 @@ final class Example implements Tag, Factory\StaticMethod
 
         $filePath = null;
         $fileUri  = null;
-        if ($matches[1] !== '') {
+        if (array_key_exists(1, $matches) && $matches[1] !== '') {
             $filePath = $matches[1];
         } else {
-            $fileUri = $matches[2];
+            $fileUri = array_key_exists(2, $matches) ? $matches[2] : '';
         }
 
         $startingLine = 1;

src/DocBlock/Tags/Factory/AbstractPHPStanFactory.php

@@ -104,12 +104,12 @@ class AbstractPHPStanFactory implements Factory
                 $fixed[] = [
                     rtrim($token[Lexer::VALUE_OFFSET], " \t"),
                     Lexer::TOKEN_PHPDOC_EOL,
-                    $token[2] ?? null,
+                    $token[2],
                 ];
                 $fixed[] = [
                     ltrim($token[Lexer::VALUE_OFFSET], "\n\r"),
                     Lexer::TOKEN_HORIZONTAL_WS,
-                    ($token[2] ?? null) + 1,
+                    $token[2] + 1,
                 ];
                 continue;
             }

src/DocBlock/Tags/Factory/TemplateFactory.php

@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace phpDocumentor\Reflection\DocBlock\Tags\Factory;
 
-use InvalidArgumentException;
 use phpDocumentor\Reflection\DocBlock\DescriptionFactory;
 use phpDocumentor\Reflection\DocBlock\Tag;
 use phpDocumentor\Reflection\DocBlock\Tags\Template;
@@ -36,9 +35,6 @@ final class TemplateFactory implements PHPStanFactory
 
         Assert::isInstanceOf($tagValue, TemplateTagValueNode::class);
         $name = $tagValue->name;
-        if ($name === '') {
-            throw new InvalidArgumentException('Template name cannot be empty');
-        }
 
         $description = $tagValue->getAttribute('description');
         if (is_string($description) === false) {

src/DocBlock/Tags/MethodParameter.php

@@ -15,9 +15,6 @@ namespace phpDocumentor\Reflection\DocBlock\Tags;
 use phpDocumentor\Reflection\DocBlock\Tags\Factory\MethodParameterFactory;
 use phpDocumentor\Reflection\Type;
 
-use function implode;
-use function is_array;
-
 final class MethodParameter
 {
     private Type $type;