gh-120619: Tier 2 partial evaluator foundations #2063

Job	Run time
Interpreter (Debug)	7m 4s
Free-Threaded (Debug) (19)	11m 5s
i686-pc-windows-msvc/msvc (Debug)	18m 22s
i686-pc-windows-msvc/msvc (Release)	24m 1s
x86_64-pc-windows-msvc/msvc (Debug)	17m 48s
x86_64-pc-windows-msvc/msvc (Release)	21m 42s
aarch64-pc-windows-msvc/msvc (Debug)	4m 41s
aarch64-pc-windows-msvc/msvc (Release)	6m 18s
x86_64-apple-darwin/clang (Debug)	16m 36s
x86_64-apple-darwin/clang (Release)	18m 20s
aarch64-apple-darwin/clang (Debug)	2m 39s
aarch64-apple-darwin/clang (Release)	4m 16s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 5s
x86_64-unknown-linux-gnu/gcc (Release)	17m 50s
x86_64-unknown-linux-gnu/clang (Debug)	7m 51s
x86_64-unknown-linux-gnu/clang (Release)	13m 22s
aarch64-unknown-linux-gnu/gcc (Debug)	1h 14m 33s
aarch64-unknown-linux-gnu/gcc (Release)	36m 50s
aarch64-unknown-linux-gnu/clang (Debug)	1h 7m 15s
aarch64-unknown-linux-gnu/clang (Release)	38m 15s
	6h 56m 53s

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