There's no normative significance, as Michael Dyck conjectured. It seems we could move Literal. Perhaps Waldemar or Allen has a preference. At this point I am ok with letting the traditional location of Literal stand.
I'm working a on ES parser recently and noticed something might be wrong about the symbol “Literal”.
Since “Literal” and “StringLiteral" "NumericLiteral" appears in lexical grammar , I believe “Literal” should be a non-terminal symbol. Also there is no other rule using “Literal” in lexical grammar. As all above I think the following description is a syntactical grammar rule instead of a lexical grammar rule:
So my suggest is moving the description from Annex A.1 to Annex A.3