@Brandon9000,
They are entirely different theories. In Newtonian physics, space doesn't have curvature, there is no reason to believe that gravity effects light, and the metric is ds^2 = dx^2 +dy^2 + dz^2.
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Newton's equations still can give your the event horizon and can predict black holes if you accept that no information can travel at greater speed then light my friend.
Yes newton does not assume a curve space or more to the point it does not address curve space/time at all one way or another.
It would be somewhat surprising it Newton came up with curve/space time now would it not.
As space is not curve to any great degree within the solar system and it took detail and very accurate readings to show that Newton equations did not fit in a perfect manner to the orbit of Mercury and therefore gave some indication that Space is curve. Far beyond any tools that Newton had on hand.
Hell it was more then a hundred years before tools/instruments come available to see that newtons equations did not fit the universe in a perfect manner.
Oh if light particles are assume to have mass then I do not see that Newton laws would have a problem with light being bended in a gravity field either.