Closes #1063

Author: sebastianbergmann

ChangeLog-11.0.md

@@ -9,6 +9,10 @@ All notable changes are documented in this file using the [Keep a CHANGELOG](htt
 * Changed version identifier for static analysis cache from "MD5 over source code" to `Version::id()`
 * The `SebastianBergmann\CodeCoverage\Filter::includeUncoveredFiles()` and `SebastianBergmann\CodeCoverage\Filter::excludeUncoveredFiles()` methods are no longer deprecated
 
+### Fixed
+
+* [#1063](https://github.com/sebastianbergmann/php-code-coverage/issues/1063): HTML report highlights argument named `fn` differently than other named arguments
+
 ## [11.0.8] - 2024-12-11
 
 ### Changed

src/Report/Html/Renderer/File.php

@@ -83,6 +83,7 @@
 use const T_WHILE;
 use const T_YIELD;
 use const T_YIELD_FROM;
+use const TOKEN_PARSE;
 use function array_key_exists;
 use function array_keys;
 use function array_merge;
@@ -982,7 +983,7 @@ private function loadFile(string $file): array
         }
 
         $buffer              = file_get_contents($file);
-        $tokens              = token_get_all($buffer);
+        $tokens              = token_get_all($buffer, TOKEN_PARSE);
         $result              = [''];
         $i                   = 0;
         $stringFlag          = false;