dirstate-tree: Add a dirstate-v1-tree variant of some tests
The `dirstate-v1` variant has the previous behavior.
`dirstate-v1-tree` uses the same format on disk, but uses the new
`DirstateMap` with a tree data structure and the new `status` algorithm.
These were untested so far.
Differential Revision: https://phab.mercurial-scm.org/D10698
{
// 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)
}