Add features tags for Atomics and SharedArrayBuffer (#1494)

test/built-ins/Atomics/wake/length.js

test/built-ins/Atomics/wake/name.js

test/built-ins/Atomics/wake/nonshared-int-views.js

test/built-ins/Atomics/wake/shared-nonint-views.js

test/built-ins/Atomics/wake/wake-all-on-loc.js

test/built-ins/Atomics/wake/wake-all.js

test/built-ins/Atomics/wake/wake-in-order.js

test/built-ins/Atomics/wake/wake-nan.js

test/built-ins/Atomics/wake/wake-negative.js

test/built-ins/Atomics/wake/wake-one.js

test/built-ins/Atomics/wake/wake-two.js

test/built-ins/Atomics/wake/wake-zero.js

test/built-ins/Atomics/xor/descriptor.js

test/built-ins/Atomics/xor/length.js

test/built-ins/Atomics/xor/name.js

test/built-ins/Atomics/xor/nonshared-int-views.js

test/built-ins/Atomics/xor/shared-nonint-views.js

test/built-ins/SharedArrayBuffer/allocation-limit.js

...haredArrayBuffer/data-allocation-after-object-creation.js

test/built-ins/SharedArrayBuffer/init-zero.js