emu-geq><emu-rhs a="7458c108"><emu-t>?.</emu-t><emu-t>[</emu-t><emu-nt params="+In, ?Yield, ?Await"><a href="https://tc39.es/ecma262/#prod-Expression">Expression</a><emu-mods><emu-params>[+In, ?Yield, ?Await]</emu-params></emu-mods></emu-nt><emu-t>]</emu-t></emu-rhs>
    <emu-rhs a="c3ee1c87"><emu-t>?.</emu-t><emu-nt><a href="https://tc39.es/ecma262/#prod-IdentifierName">IdentifierName</a></emu-nt></emu-rhs>
    <emu-rhs a="f214ef29"><emu-t>?.</emu-t><emu-nt params="?Yield, ?Await"><a href="https://tc39.es/