Allow object wrap without constructor #3729

Job	Run time
compute-jobs	2s
build-linux / linux test	1m 8s
build-linux / linux coverage	1m 10s
build-linux / linux lint-deps	1m 9s
build-linux / linux lint	52s
build-linux / linux test-miri	1m 9s
build-linux / linux test-ops	1m 9s
build-linux / linux test-publish	1m 9s
build-linux / linux test-valgrind	19s
build-linux-arm / linux-arm test	54s
build-linux-arm / linux-arm lint	1s
build-linux-arm / linux-arm test-miri	1s
build-macos / macos test	1m 12s
build-macos / macos lint	1m 8s
build-windows / windows test	1m 0s
build-windows / windows lint	49s
success	1s
	13m 13s

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