fixed bug with first line of stack trace

First lines in stack traces often contain magical PHP calls,
wich PHP silently inserts into your code. In short, the stack
does not reflect your code.

This commit brings back previous behaviour, where the first
line is by default taken from the source file, and not PHP.

Author: Joseph Lenton

src/php_error.php

@@ -2008,10 +2008,16 @@ private function parseStackTrace( $code, $message, $errLine, $errFile, &$stackTr
 
                             if ( $i === 0 && $altInfo !== null ) {
                                 $info = $altInfo;
+                            /*
+                             * Skip for the first iteration,
+                             * as it's usually magical PHP calls.
+                             */
                             } else if (
-                                isset($trace['class']) ||
-                                isset($trace['type']) ||
-                                isset($trace['function'])
+                                $i > 0 && (
+                                        isset($trace['class']) ||
+                                        isset($trace['type']) ||
+                                        isset($trace['function'])
+                                )
                             ) {
                                 $args = array();
                                 if ( isset($trace['args']) ) {