[PATCH 0/7] MR778: vkd3d-shader/ir: Prepare the CFG structurizer per handling Hull Shaders.

[Giovanni Mascellani (＠giomasce)]

Hull Shaders contain two functions instead of just one, so all the algorithms that require computing a CFG need to be run twice. Here we refactor the code so that this can be done more easily.

This MR is relatively long, but it is essentially just moving code around, so hopefully it is not too difficult to review anyway.