Hey Tawqee3
I had the same problem, all you have to do is simple fix in the core CSS file:
wp-content/plugins/syntaxhighlighter/syntaxhighlighter/styles/shCore.css
Add the following in this .syntaxhighlighter classname:
direction: ltr !important;
Thie forces the main div to render the text inside it to LTR on RTL pages.
Regards,
Abdulrahman
