add Promise::MarkAsHandled #7032

Job	Run time
release aarch64-pc-windows-msvc	12m 54s
asan aarch64-apple-darwin	13m 0s
debug x86_64-apple-darwin	18m 6s
debug x86_64-apple-darwin ptrcomp	16m 33s
release x86_64-apple-darwin	12m 22s
release x86_64-pc-windows-msvc	11m 2s
release x86_64-unknown-linux-gnu ptrcomp	7m 59s
debug x86_64-unknown-linux-gnu ptrcomp	15m 14s
release aarch64-apple-darwin	10m 42s
debug x86_64-unknown-linux-gnu	15m 6s
release aarch64-unknown-linux-gnu	15m 35s
debug aarch64-apple-darwin	13m 35s
debug aarch64-unknown-linux-gnu	29m 46s
release aarch64-apple-darwin ptrcomp	13m 41s
debug aarch64-apple-darwin ptrcomp	13m 53s
release x86_64-apple-darwin ptrcomp	13m 1s
release x86_64-unknown-linux-gnu	8m 4s
test aarch64-pc-windows-msvc	4m 1s
publish	-1s
	4h 4m 33s

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