syntax_data: {"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// implicit deref of a reference type. Returns the prior default binding mode; this should be
context_before:     /// This should only be called when the pattern type adjustments list `adjustments` contains an
context_after:     /// followed by a call to [`PatMigration::leave_ref`] to restore it when we leave the pattern.