Eliminate realpath() call.

Author: sebastianbergmann

PHP/CodeCoverage/Filter.php

@@ -187,8 +187,10 @@ public function removeDirectoryFromBlacklist($directory, $suffix = '.php', $pref
      */
     public function removeFileFromBlacklist($filename, $group = 'DEFAULT')
     {
-        if (isset($this->blacklistedFiles[$group][realpath($filename)])) {
-            unset($this->blacklistedFiles[$group][realpath($filename)]);
+        $filename = realpath($filename);
+
+        if (isset($this->blacklistedFiles[$group][$filename])) {
+            unset($this->blacklistedFiles[$group][$filename]);
         }
     }
 
@@ -279,8 +281,10 @@ public function removeDirectoryFromWhitelist($directory, $suffix = '.php', $pref
      */
     public function removeFileFromWhitelist($filename)
     {
-        if (isset($this->whitelistedFiles[realpath($filename)])) {
-            unset($this->whitelistedFiles[realpath($filename)]);
+        $filename = realpath($filename);
+
+        if (isset($this->whitelistedFiles[$filename])) {
+            unset($this->whitelistedFiles[$filename]);
         }
     }