Internal error on certain multi-target assignments

[Charles]

class X

    def foo
        a, b = 'x', .bar('y')
        a, b = 'x', _bar('y')  # <--- causes internal error
        CobraCore.noOp(a, b)

    def bar(s as String) as int
        return 1
        
    def _bar(s as String) as int
        return 1

    def main
        print 'done.'

[Charles]

Fixed in changeset:3100