Optimized code for phpstan.neon

Author: limingxinleo

src/AssertableJsonString.php

@@ -215,8 +215,6 @@ public function assertMissingExact(array $data)
             'within' . PHP_EOL . PHP_EOL .
             "[{$actual}]."
         );
-
-        return $this;
     }
 
     /**

src/Constraint/ArraySubset.php

@@ -121,10 +121,6 @@ protected function failureDescription($other): string
      */
     private function toArray(iterable $other): array
     {
-        if (is_array($other)) {
-            return $other;
-        }
-
         if ($other instanceof ArrayObject) {
             return $other->getArrayCopy();
         }
@@ -133,7 +129,6 @@ private function toArray(iterable $other): array
             return iterator_to_array($other);
         }
 
-        // Keep BC even if we know that array would not be the expected one
         return (array) $other;
     }
 }

src/Http/TestResponse.php

@@ -41,7 +41,7 @@ class TestResponse implements ArrayAccess
     /**
      * The streamed content of the response.
      *
-     * @var string
+     * @var null|string
      */
     protected $streamedContent;
 
@@ -675,7 +675,7 @@ public function getStatusCode(): int
      */
     public function streamedContent()
     {
-        if (! is_null($this->streamedContent)) { /* @phpstan-ignore-line */
+        if (! is_null($this->streamedContent)) {
             return $this->streamedContent;
         }
 
@@ -693,7 +693,7 @@ public function streamedContent()
 
         ob_end_clean();
 
-        return $this->streamedContent;
+        return (string) $this->streamedContent;
     }
 
     /**