run-tests: restrict the test cases allowed characters
Most test cases in core and in extension only use `A-Za-z0-9-` but a few tests
in extensions also have a `.` in their test cases names. Also add a `_` to
allow all kind of case naming format.
Differential Revision: https://phab.mercurial-scm.org/D3721
{
// 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)
}