These methods are in my opinion a footgun because they don't do what you might think they do. Worse still, minimal test cases often won't reveal that.

We use get_symbol_id_from_name to get the SymbolId for a reference, but actually that's not what it's doing - it will give you the SymbolId of the first binding with this variable name anywhere in the AST.

They are not the same. e.g. in this case:

{
    let foo;
}
let bar = foo;

If we want to know if foo in let bar = foo; refers to a local variable, get_symbol_id_from_name("foo").is_some() says "yes it does". But that's wrong.

Instead we should use symbol_table.is_global_reference(ident.reference_id().unwrap()).

As well as being correct, this is also much more performant, as it doesn't iterate through every single symbol in the entire AST the way get_symbol_id_from_name does.

Current API usage

get_symbol_id_from_name

• fix(linter): eslint/radix rule correctly check for unbound symbols #5446 removes a usage and adds tests which demonstrate it was incorrect.
• fix(linter): tree_shaking/no_side_effects_in_initialization handle JSX correctly #5450 removed another one.
• The only remaining usage of is in the tree_shaking/no_side_effects_in_initialization linter rule, and I believe it's incorrect there too (Incorrect symbol resolution in tree_shaking/no_side_effects_in_initialization? #5455).

get_scope_id_from_name

This method is not used anywhere in Oxc.