syntax_data: {"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// `foo(bar())` is exited. This is relevant, for example, if the
context_before:     /// schedule `_X` to be dropped when the expression scope for
context_after:     /// later arguments should unwind (it would ensure that `_X` gets