pulley: Remove special registers as candidates from regalloc #26566

Job	Run time
Clang format	12s
Rustfmt	27s
Check JS	7s
Check illumos	2m 54s
Clippy	5m 47s
Determine CI jobs to run	12s
Check wasmtime	4m 12s
Monolith Checks	3m 29s
no_std checks	53s
Check wasmtime-cli	3m 29s
Check cranelift-codegen	1m 2s
Check wasmtime-bench-api	1m 21s
Check wasmtime-c-api	1m 9s
Cargo vet	0s
Cargo deny	0s
Doc build	0s
Check Windows ARM64	0s
Nightly tests	4m 33s
Tests on i686-unknown-linux-gnu	51s
Test C-API ${{ matrix.os }}	0s
Tests on armv7-unknown-linux-gnueabihf	1m 3s
Test DWARF debugging	0s
Test wasmtime-fuzzing	0s
Test wasi-nn (${{ matrix.feature }}, ${{ matrix.os }})	0s
Run benchmarks	0s
Build wasi-preview1-component-adapter	0s
Build wasmtime-target-wasm32	0s
Test the min-platform example	0s
Release build for ${{ matrix.build }}	0s
Miri (wasmtime)	5m 46s
Meta deterministic check	0s
Miri (wasmtime-cli)	14m 39s
verify-publish	0s
Miri (wasmtime-environ)	1m 5s
Miri (pulley-interpreter --all-features)	2m 39s
Cargo vet failed on a Pull Request	0s
Build wasi-preview1-component-adapter-provider	0s
Record the result of testing and building steps	3s
push-tag	0s
	55m 53s

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