Atomics: ensure all SharedArrayBuffer sizes are uniform

test/built-ins/Atomics/add/expected-return-value.js

test/built-ins/Atomics/and/expected-return-value.js

...uilt-ins/Atomics/compareExchange/expected-return-value.js

test/built-ins/Atomics/exchange/expected-return-value.js

test/built-ins/Atomics/load/expected-return-value.js

test/built-ins/Atomics/or/expected-return-value.js

test/built-ins/Atomics/store/expected-return-value.js

test/built-ins/Atomics/sub/expected-return-value.js

test/built-ins/Atomics/wait/bad-range.js

test/built-ins/Atomics/wait/bigint/bad-range.js

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

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

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

...ns/Atomics/wait/bigint/no-spurious-wakeup-no-operation.js

...uilt-ins/Atomics/wait/bigint/no-spurious-wakeup-on-add.js

...uilt-ins/Atomics/wait/bigint/no-spurious-wakeup-on-and.js