syntax_data: {"ast_node_type":"function","tokens":[{"end":63,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // Unlike the builder `fn move_path_for` below, this lookup
context_before: impl<'tcx> MovePathLookup<'tcx> {
context_after:     // alternative will *not* create a MovePath on the fly for an