Add checkpoint logic for the parser #28408

Job	Run time
Determine changes	8s
pre-commit	28s
mkdocs	50s
cargo fmt	14s
python package	42s
benchmarks	50s
cargo fuzz	1m 6s
cargo build (release)	41s
cargo clippy	39s
cargo shear	19s
cargo test (linux)	49s
cargo test (wasm)	41s
cargo test (windows)	3m 58s
formatter instabilities and black similarity	1m 27s
test scripts	25s
Fuzz the parser	0s
test ruff-lsp	0s
ecosystem	0s
	13m 17s

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