syntax_data: {"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // either and have a stable choice of symbol mangling version
context_before:     // both their `CrateNum`s are stable for any given instance, so we can pick
context_after:     // 2. we favor `instantiating_crate` where possible (i.e. when `Some`)