Rename vec_splat_i* to the correct name #1909

Job	Run time
Check Style	14s
Env Override	13s
Build Documentation	1m 4s
Build std_detect	57s
Automatic intrinsic verification	26s
Test (i686-unknown-linux-gnu)	1m 51s
Test (x86_64-unknown-linux-gnu)	3m 36s
Test (x86_64-unknown-linux-gnu-emulated)	9m 6s
Test (arm-unknown-linux-gnueabihf)	1m 19s
Test (armv7-unknown-linux-gnueabihf)	10m 46s
Test (aarch64-unknown-linux-gnu)	22m 14s
Test (riscv64gc-unknown-linux-gnu)	1m 17s
Test (powerpc64le-unknown-linux-gnu)	4m 0s
Test (s390x-unknown-linux-gnu)	1m 13s
Test (wasm32-wasi)	1m 24s
Test (i586-unknown-linux-gnu)	2m 0s
Test (nvptx64-nvidia-cuda)	29s
Test (thumbv6m-none-eabi)	21s
Test (thumbv7m-none-eabi)	16s
Test (thumbv7em-none-eabi)	12s
Test (thumbv7em-none-eabihf)	13s
Test (aarch64-apple-darwin)	1m 32s
Test (x86_64-pc-windows-msvc)	6m 23s
Test (i686-pc-windows-msvc)	2m 51s
Test (x86_64-apple-darwin, macos-11)	7m 58s
	1h 21m 55s

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