add Promise::MarkAsHandled (#1912) #7033

Job	Run time
asan aarch64-apple-darwin	14m 42s
release aarch64-pc-windows-msvc	11m 18s
release aarch64-apple-darwin	13m 18s
release x86_64-apple-darwin ptrcomp	13m 15s
release x86_64-unknown-linux-gnu	8m 32s
release x86_64-apple-darwin	11m 59s
release x86_64-unknown-linux-gnu ptrcomp	8m 12s
debug x86_64-apple-darwin	17m 55s
debug x86_64-apple-darwin ptrcomp	18m 43s
debug aarch64-apple-darwin	14m 49s
debug x86_64-unknown-linux-gnu	14m 14s
debug x86_64-unknown-linux-gnu ptrcomp	15m 34s
release x86_64-pc-windows-msvc	10m 32s
debug aarch64-unknown-linux-gnu	27m 30s
release aarch64-unknown-linux-gnu	14m 49s
debug aarch64-apple-darwin ptrcomp	14m 40s
release aarch64-apple-darwin ptrcomp	12m 23s
test aarch64-pc-windows-msvc	4m 11s
publish	-1s
	4h 6m 35s

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