Feature summary (what you would like to be able to do and where):

I would like to have an option to not have my search input interpreted as regex, but instead just use it as the actual search term.

Use case(s) (list the steps that you performed to discover that problem, and describe the actual underlying problem which you want to solve. Do not describe only a solution):

Often when I search for functions or variables, I have to escape some characters (function\(\), \$wgDBname etc) for my search to work properly which is really annoying in my opinion.

Benefits (why should this be implemented?):

This would allow copy-pasting code directly to the search without the need to manually escape it.