To expand on the comment by wsc, we could write $ \int\,dx\,\delta(x-x_0) \partial_x F(x) = -\int dx \partial_x \delta(x-x_0) F(x)\,, $ and then pick our favorite representation of the $\delta$ function. Let's say $ \lim_{\epsilon \searrow 0} \frac{1}{\sqrt{2\pi\epsilon}}\,e^{-(x-x_0)^2/2\epsilon} = \delta(x - x_0)\,, $ and then write $ \int dx \delta(x-x_0) \partial_x F(x) = -\lim_{\epsilon \searrow 0} \int dx \frac{1}{\sqrt{2\pi\epsilon}}\,\partial_x e^{-(x-x_0)^2/2\epsilon} F(x)\,. $ Since we see that $ \partial_x e^{-(x-x_0)^2/2\epsilon} = -\partial_{x_0} e^{-(x-x_0)^2/2\epsilon}\,, $ we can write $ \int dx \delta(x-x_0) \partial_x F(x) = \lim_{\epsilon \searrow 0} \int dx \frac{1}{\sqrt{2\pi\epsilon}}\,\partial_{x_0} e^{-(x-x_0)^2/2\epsilon} F(x)\,, $ and conclude $ \int dx \delta(x-x_0) \partial_x F(x) = \partial_{x_0} \lim_{\epsilon \searrow 0} \int dx \frac{1}{\sqrt{2\pi\epsilon}} e^{-(x-x_0)^2/2\epsilon} F(x) = \partial_{x_0} \int dx \delta(x-x_0) F(x) = F^\prime(x_0)\,. $