tests: fix duplicate and failing test
There were two "testconflictingrequestid" methods. Naturally this isn't
an error in Python. And by our luck, the test was failing.
So we rename the test and fix it to pass.
As part of this, _sendsingleframe() now takes a frame, not a string
describing the frame. This is better because action at a distance can
be confusing.
Differential Revision: https://phab.mercurial-scm.org/D2950
{
// 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)
}