Precaching global shaders with r.PSOPrecache.GlobalShaders = 2 crashes on startup

A licensee has reported that they are trying to run a cooked project with r.PSOPrecache.GlobalShaders=2 and running into a crash.

They believe the problem is in PrecacheComputePipelineStatesForGlobalShaders, where the code should check whether the given shader is a compute shader or something else and call FPrecacheGraphicsPipelineCache::PrecacheGraphicsPipelineState instead for non-compute shaders. This reproduces reliably on default projects as well.

Steps to Reproduce

• Start a cooked build with the console variable r.PSOPrecache.GlobalShaders set to 2
• Observe that the game crashes on startup