These are analogous to the JSHint options "noarg" and "nobsp", which are already enabled in `build/jenkins/lint-config/jshint.json`.
From <https://jshint.com/docs/options/>:
> * nonbsp: This option warns about "non-breaking whitespace" characters
> in source code.
> * noarg: This option prohibits the use of `arguments.caller`
> and `arguments.callee`.
From <https://eslint.org/docs/rules/no-caller>:
> This rule is aimed at discouraging the use of deprecated and sub-optimal
> code by disallowing use of `arguments.caller` and `arguments.callee`.
From <https://eslint.org/docs/rules/no-irregular-whitespace>:
> Invalid or irregular whitespace makes code harder to debug in a similar
> nature to mixed tabs and spaces.
> This rule disallows the following characters: \u00A0 <NBSP>, …