Leverage non-capturing catches

Author: fancyweb

ErrorEnhancer/ClassNotFoundErrorEnhancer.php

@@ -157,7 +157,7 @@ private function convertFileToClass(string $path, string $file, string $prefix):
 
         try {
             require_once $file;
-        } catch (\Throwable $e) {
+        } catch (\Throwable) {
             return null;
         }
 

ErrorHandler.php

@@ -629,7 +629,7 @@ public static function handleFatalError(array $error = null): void
                 self::$exitCode = 255;
                 $handler->handleException($fatalError);
             }
-        } catch (FatalError $e) {
+        } catch (FatalError) {
             // Ignore this re-throw
         }
 

ErrorRenderer/SerializerErrorRenderer.php

@@ -68,7 +68,7 @@ public function render(\Throwable $exception): FlattenException
                 'debug' => $debug,
             ]))
             ->setHeaders($flattenException->getHeaders() + $headers);
-        } catch (NotEncodableValueException $e) {
+        } catch (NotEncodableValueException) {
             return $this->fallbackErrorRenderer->render($exception);
         }
     }