Atomics: wait/bigint cleanup

test/built-ins/Atomics/wait/bigint/cannot-suspend-throws.js

test/built-ins/Atomics/wait/bigint/did-timeout.js

.../built-ins/Atomics/wait/bigint/false-for-timeout-agent.js

test/built-ins/Atomics/wait/bigint/good-views.js

test/built-ins/Atomics/wait/bigint/nan-for-timeout.js

test/built-ins/Atomics/wait/bigint/negative-index-throws.js

test/built-ins/Atomics/wait/bigint/negative-timeout-agent.js

test/built-ins/Atomics/wait/bigint/negative-timeout.js

...uilt-ins/Atomics/wait/bigint/out-of-range-index-throws.js

test/built-ins/Atomics/wait/bigint/value-not-equal.js

...mics/wait/bigint/waiterlist-block-indexedposition-wake.js

test/built-ins/Atomics/wait/false-for-timeout-agent.js

test/built-ins/Atomics/wait/false-for-timeout.js

...ins/Atomics/wait/waiterlist-block-indexedposition-wake.js

...ns/Atomics/wait/waiterlist-order-of-operations-is-fifo.js