Map `SV_InstanceID` to `gl_InstanceIndex-gl_BaseInstance` #8042

Job	Run time
build (linux, debug, gcc, x86_64)	10m 12s
build (linux, release, gcc, x86_64)	10m 11s
build (linux, release, gcc, wasm)	10m 12s
build (macos, debug, clang, aarch64)	3m 4s
build (macos, release, clang, aarch64)	3m 8s
build (windows, debug, cl, x86_64)	10m 5s
build (windows, release, cl, x86_64)	10m 21s
build (linux, release, gcc, aarch64, smoke, false, self-hosted, Linux, ARM64, true)	1s
	57m 14s

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