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gh-159961: Add external frame introspector to support deferred reference countin… #3681

Job	Run time
x86_64-apple-darwin/clang	1h 0m 23s
x86_64-unknown-linux-gnu/gcc-free-threading	6m 10s
x86_64-unknown-linux-gnu/gcc	6m 38s
aarch64-apple-darwin/clang	10m 3s
aarch64-unknown-linux-gnu/gcc	6m 19s
	1h 29m 33s