syntax_data: {"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // here to paramswhose parent are items in the trait. We could synthesize new params
context_before:     // FIXME: This may be detrimental to diagnostics, as we resolve the early-bound vars
context_after:     // here, but it seems overkill.