syntax_data: {"ast_node_type":"other","tokens":[{"end":109,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// This defines the "default ABI" for that type, that is then later adjusted in `fn_abi_adjust_for_abi`.
context_before: impl<'a, Ty> ArgAbi<'a, Ty> {
context_after:     pub fn new(