nir: copy intrinsic type when lowering load input/uniform and store output

Fixes: c1275052 "nir: add type information to load uniform/input and store output intrinsics"

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Erico Nunes <nunes.erico@gmail.com>
Tested-by: Erico Nunes <nunes.erico@gmail.com>
Tested-by: Andreas Baierl <ichgeh@imkreisrum.de>
10 jobs for !987 with nir-fix-intfloat in 8 minutes and 47 seconds (queued for 2 seconds)
detached
Status Job ID Name Coverage
  Containers Build
passed debian #332716

00:00:21

 
  Build+Test
passed meson-clang #332718

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passed meson-clover #332722

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passed meson-main #332721

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passed meson-swr-glvnd #332717

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passed meson-vulkan #332723

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passed scons-llvm #332725

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passed scons-nollvm #332724

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passed scons-swr #332719

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passed scons-win64 #332720

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