The proposal currently does not allow a static {} block to inherit the [Await] flag of its surrounding context. We intend to leave open the possibility of supporting this in the future, though not at this time. However, by passing [~Await] to the statement list, we allow the use of await as an identifier inside of the static {} block, which would make adopting the outer [Await] context a breaking change.

To address this concern, we should disallow await as an IdentifierReference or BindingIdentifier directly inside of a static {} block (while still allowing it inside of a function nested inside of the block).

Note that this is less of an issue with yield, as yield is treated as a reserved word in strict mode, and class bodies are always strict.

Related: #7, #24