original_string: public function doc_link($issue, $name) {
          global $CFG, $OUTPUT;
  
          if (empty($CFG->docroot)) {
              return $name;
          }
  
          return $OUTPUT->doc_link('report/performance/'.$issue, $name);
      }
code: public function doc_link($issue, $name) {
          global $CFG, $OUTPUT;
  
          if (empty($CFG->docroot)) {
              return $name;
          }
  
          return $OUTPUT->doc_link('report/performance/'.$issue, $name);
      }
code_tokens: public function doc_link ( $ issue , $ name ) { global $ CFG , $ OUTPUT ; if ( empty ( $ CFG -> docroot ) ) { return $ name ; } return $ OUTPUT -> doc_link ( 'report/performance/' . $ issue , $ name ) ; }
docstring: Returns document link for performance issue
  
  @param string $issue string describing issue
  @param string $name name of issue
  @return string issue link pointing to docs page.
docstring_tokens: Returns document link for performance issue