Parse error when leaving edit-post without saving

[DrewAPicture]

I started writing a post, entered some text then changed my mind. I clicked out to a different menu, when prompted I clicked to leave the page without saving changes and received this error:

Parse error: syntax error, unexpected T_SL in (...)/wp-admin/includes/class-wp-posts-list-table.php on line 556

Note: The error appears even if a draft has previously been saved.

Repro:

1. Posts -> Add New
2. Enter some text in the editor
3. Click another menu/link to leave the editing page
4. Click to confirm the "Are you sure?" dialog to leave without saving

nacin$ php -l wp-admin/includes/class-wp-posts-list-table.php
No syntax errors detected in wp-admin/includes/class-wp-posts-list-table.php

Any chance you have some cruft on your install? Try running a diff.