Unstable output with semicolon

[Timmmm]

Ok technically it does converge on stable output, but not in one step. If you start here:

predefined_typedefs = {'foo' : 'bar'};

YAPF formats it to this:

predefined_typedefs = {
    'foo': 'bar'
}

And then to this:

predefined_typedefs = {'foo': 'bar'}