themusicgod1/co-mocha: Enable support for generators in Mocha tests(evacuated from NSA/Microsoft Github)

anonymous f14879c604 WIP		%!s(int64=6) %!d(string=hai) anos
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changelog	f14879c604 WIP	%!s(int64=6) %!d(string=hai) anos
compat	f14879c604 WIP	%!s(int64=6) %!d(string=hai) anos
control	f14879c604 WIP	%!s(int64=6) %!d(string=hai) anos
copyright	f14879c604 WIP	%!s(int64=6) %!d(string=hai) anos
rules	f14879c604 WIP	%!s(int64=6) %!d(string=hai) anos