gh-144540: Add _MAKE_HEAP_SAFE uop to eliminate unnecessary refcount … #245

Job	Run time
x86_64-apple-darwin/clang	17m 51s
x86_64-pc-windows-msvc/msvc-free-threading	4m 48s
x86_64-unknown-linux-gnu/gcc-free-threading	8m 33s
x86_64-unknown-linux-gnu/gcc	10m 7s
x86_64-pc-windows-msvc/msvc	12m 2s
aarch64-unknown-linux-gnu/gcc	7m 16s
aarch64-apple-darwin/clang	9m 46s
	1h 10m 23s

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