config: reject str sections and keys on Python 3
Otherwise we could end up with a dict having both the str
and bytes versions of a particular config item. This may cause
some tests to regress. I haven't checked. But it is better
behavior to fail fast.
We could just as easily change this to normalize the values. But
I like catching all non-compliant call sites first.
Differential Revision: https://phab.mercurial-scm.org/D5649
{
// Enforcing
"eqeqeq" : true, // true: Require triple equals (===) for comparison
"forin" : true, // true: Require filtering for..in loops with obj.hasOwnProperty()
"freeze" : true, // true: prohibits overwriting prototypes of native objects such as Array, Date etc.
"nonbsp" : true, // true: Prohibit "non-breaking whitespace" characters.
"undef" : true, // true: Require all non-global variables to be declared (prevents global leaks)
// Environments
"browser" : true // Web Browser (window, document, etc)
}