sshpeer: inline I/O into _validaterepo()
We want to move the handshake code out of the peer class so the
peer factory function can perform the handshake and instantiate
a proper class depending on the results. To make that refactor
easier to read, we first inline I/O functionality into
_validaterepo().
Test output for low-level protocol tests didn't change, thus
hopefully demonstrating that this refactor didn't change any
material behavior.
Because we no longer call _callstream(), our test extension for
monkeypatching the peer had to change its hook point.
Differential Revision: https://phab.mercurial-scm.org/D2033
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// 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)
}